2009 Audi TTS Roadster

2009 Audi TTS Roadster

2009 Audi TTS Coupe

2009 Audi TTS Coupe

Audi is taking the wraps off a new sports car - the Audi TTS, the top of the TT model line. It will be coming to dealer showrooms in the early summer. Under its hood lies a two-liter TFSI high-performance engine delivering a mighty 200 kW (272 hp). This intense power propels the TTS Coupe to 100 km/h (62.14 mph) from a standstill in just 5.2 seconds and on to a governor-limited top speed of 250 km/h (155.34 mph). The Audi TTS is available as both a 2 + 2-seater coupe and as a roadster.Designed to appeal to a young and dynamic clientele, the TTS represents the Audi brand's Vorsprung durch Technik ("advancement through technology") in its very latest form. The TFSI engine in the TTS takes the two Audi technologies of gasoline direct injection and turbocharging and blends them to form a perfect partnership. Aside from its output of 200 kW (272 hp), it is its peak torque of 350 Nm (258.15 lb-ft), which is constantly on tap between 2,500 and 5,000 rpm, that makes the compact and lightweight four-cylinder unit so impressive.Compared to the engine it was derived from, the two-liter power unit has been reengineered and strengthened in a number of key areas to ready it for operation in the TTS. Thanks to its excellent efficiency, the sporty-sounding TFSI has an average fuel consumption of just 8.0 liters of fuel per 100 kilometers (29.375 mpg) in the Coupe when partnered by the six-speed manual transmission, while the figure for the roadster averages 8.2 l/100 km (28.659 mpg). These figures are improved by 0.1 and 0.2 l/100 km (by 0.372 and 0.716 mpg), respectively, if the optional S tronic dual-clutch transmission is fitted.S tronic, which deploys two clutches, is capable of performing extremely quick gear shifts at high engine loads and rev speeds; consequently, the time taken to sprint from zero to 100 km/h (62.14 mph) is cut by a further two-tenths of a second in both the Coupe and Roadster. Loss-free transfer of power to the road is the task of the standard quattro permanent all-wheel drive that enables the TTS to accelerate quicker and with greater stability than its rivals. At the heart of this system is a hydraulic multi-plate clutch that works faster than ever thanks to a new pressure reservoir.The TTS rolls off the production line equipped with yet another high-tech module - the Audi magnetic ride adaptive damping system. This gives the driver the choice of two characteristic settings: "Standard" mode is designed for a wellbalanced, comfortable ride, whereas in the "Sport" setting the TTS harnesses all of the potential of its sports suspension - which lowers the body by 10 millimeters (0.39 in.) - to deliver uncompromisingly dynamic handling. Its front suspension is mainly made of aluminum, while the efficient technology of the precision electromechanical steering also helps to improve fuel consumption considerably. The sports car is safely brought to a standstill by the high-performance braking system with its 17-inch discs.Yet another factor in the supreme performance of the TTS is the hybrid construction of its body. Steel is used at the rear end, while the front and center sections of the body are built from lightweight aluminum. ASF (Audi Space Frame) technology optimizes axle load distribution and reduces the overall weight. The manual Coupe weighs just 1,395 kilograms (3,075.45 lbs), which equates to a power-to-weight ratio of 5.1 kg/hp (11.24 lbs/hp).

Powerful looks: 18-inch wheels plus new headlights

The Audi TTS instantly stands out as the dynamic flagship of the TT model line. The standard 18-inch aluminum wheels are a highlight of the exterior design, as are the headlights, comprising newly designed bi-xenon units with LED daytime running lights. Inside, passengers are welcomed by deep-set sports seats trimmed in a mixture of leather and Alcantara, with Silk Nappa leather seat upholstery in four different color combinations available as an option. The gray instrument panel as well as the multifunctional steering wheel add further styling touches.The Audi TTS Roadster comes with an electrohydraulic drive for the soft top, a power wind deflector, plus, for added practicality, a load-through facility. The rear seats in the Coupe have a split-folding design, allowing luggage capacity to be increased from 290 to 700 liters (10.24 to 24.72 cubic ft.). The hard-top TTS is priced at 44,900 euros and the convertible version at 47,750 euros.The unveiling of the TTS also marks something of an anniversary for Audi: It was 10 years ago that the TT Coupe first took to the road, swiftly acquiring the status of design icon. And the TT has stayed firmly in the fast lane ever since.

The Drivetrain

The TFSI engine fitted in the TTS summons its power from a displacement of 1984 cc, and blends two separate Audi technologies - gasoline direct injection and turbocharging - to form a partnership that is perfect for a sports car. It is with good reason that an international jury of motoring journalists has crowned the two-liter four-cylinder power unit "Engine of the Year" three times in succession since 2005.It is not only the 200 kW (272 hp) of output that makes the TFSI so scintillating, there's its hefty pulling power too - the maximum torque of 350 Nm (258.15 lb-ft) is constantly on tap from 2,500 up to 5,000 rpm. The Coupe with manual transmission takes just 5.4 seconds to race from zero to 100 km/h (62.14 mph), while a mere 4.4 seconds are required to speed up from 80 to 120 km/h (49.71 to 74.56 mph) in fourth gear. The Roadster is almost as impressive, recording times of 5.6 and 4.6 seconds respectively for the same two exercises. The electronic limiter calls a halt to this outstanding propulsion at a speed of 250 km/h (155.34 mph) in both models.Compared to the engine it was derived from, the two-liter power unit has undergone extensive reengineering and strengthening to ready it for operation in the TTS - overhauled areas include the engine block, the cylinder head, the pistons, the connecting rods and the turbocharger, which can build up as much as 1.2 bar of relative air pressure. The intake and exhaust systems have undergone elaborate honing to allow the refined four-cylinder engine to both breathe freely and generate a powerful, resonant soundtrack. An optimized and highly efficient intercooler lowers the temperature of the compressed air, producing a crucial increase in the quantity of air supplied for combustion.Thanks to its outstanding efficiency, the TFSI has impressive fuel consumption of 7.9 liters per 100 km (29.747 mpg) in the Coupe when partnered by the S tronic transmission, and just 8.0 l/100 km (29.375 mpg) in the Roadster. The two-liter engine is extremely light, weighing in at 153 kilograms (337.31 lbs). This has considerable benefits for the overall weight of the TTS as well as for the axle load distribution and, consequently, for the vehicle's handling.

High-tech gearshifting: S tronic

Transmission of the engine's power is handled as standard in the TTS by a manual six-speed gearshift with a light-weight magnesium housing. As an alternative, customers can opt for S tronic, which operates using six gears and two clutches positioned one behind the other. At high engine loads and rev speeds, it is capable of shifting in just two-tenths of a second. As a result of this high-speed shift work and its dynamic start-off capabilities, the dual-clutch transmission from Audi shaves a whole two-tenths off the time taken for the sprint from zero to 100 km/h (62.14 mph) in both the Coupe and the Roadster.S tronic, which likewise boasts excellent efficiency, also allows the driver to shift gears manually using the one-touch lever or by means of paddles on the steering wheel, just like in a racing car. There is also a choice of two automatic operating modes: N for "Normal" and S for "Sport." The clutches also have an adaptive design, enabling the start-off characteristics to be varied - whereas caution is exercised on slippery surfaces, full power can be unleashed at the driver's command when there is firm grip.The standard-specification quattro permanent all-wheel drive ensures loss-free transfer of the engine's power to the road. With drive power being delivered to all four wheels, the TTS is able to accelerate quicker and more safely than its rivals, delivering dynamism coupled with supreme stability under all conditions.At the heart of the quattro system is an electronically controlled and hydraulically operated multi-plate clutch, which now works even faster than ever thanks to a new pressure reservoir. If required, all of the drive force can be redirected from the front to the rear wheels within a matter of milliseconds. To make allowance for the high torques produced by the TFSI engine in the TTS, the drive train has been reinforced as required.

The Chassis

Audi has opted for a McPherson front suspension with lower triangular wishbones for the TTS. The suspension is largely made of aluminum, thereby reducing the unsprung masses. With a view to increasing rigidity, the subframe is bolted to the body at six points. The sensitive, high-precision power steering is driven electromechanically, a technology that improves fuel consumption by 0.2 liters per 100 km (0.716 mpg). The characteristics of the steering's power assistance have been adapted to reflect the dynamic nature of the TTS.The four-link rear suspension offers considerable benefits for vehicle handling, as it is capable of dealing with the longitudinal and lateral forces separately from one another. All of the links are made from high-strength grades of steel, while modified bearings emphasize the taut feel of the TTS. The coil springs and shock absorbers are fitted separately from one another, meaning that they take up little space.The TTS comes standard with 18-inch cast aluminum wheels that sport the fivearm parallel-spoke S design and are shod with 245/40-size tires. Further wheel variants are optionally available, including a new 19-inch cast aluminum wheel designed by quattro GmbH. The exceptionally dynamic top-of-the-line TT model comes equipped with a high-performance braking system. Large disks are fitted front and rear, with the front disks being internally ventilated too. Inside the black-painted calipers, which bear the TTS emblem at the front, are the sport brake pads. Audi has devised a second, sporty level for the ESP stabilization program which enables controlled drifting.

Audi magnetic ride - crisp and versatile

The TTS rolls off the production line equipped with yet another high-tech solution — the Audi magnetic ride adaptive suspension system. Circulating inside the damper pistons is a special fluid containing minute magnetic particles. When an electrical voltage is applied, the oil's flow properties change the characteristics of the suspension.Audi magnetic ride works adaptively, meaning that it adjusts automatically to suit the prevailing conditions. The driver can select one of two suspension settings. In "Normal" mode, when oil viscosity is high, the TTS offers a well-balanced, comfortable ride. In the "Sport" setting, meaning low viscosity, the TTS harnesses all of the potential of its sports suspension - which lowers the body by 10 millimeters (0.39 in.) - to deliver uncompromisingly dynamic handling.The Audi generates non-stop fun at the wheel as it speeds around corners like a go-cart with absolute crispness and precision, seemingly glued to the road. Any body roll is suppressed from the moment the vehicle starts to turn. The steering becomes more responsive and direct, and selective bracing of the wheels makes the self-steering more neutral.

The Body

The superior performance of the TTS can be partly attributed to the technology of its bodywork, whose hybrid construction combines two different types of materials. Steel is used at the rear end, while the front and center sections of the body are built from lightweight aluminum.Audi first developed this principle, known as the Audi Space Frame (ASF), in the early 1990s, triggering a revolution in body manufacturing. Extruded sections, pressure die-castings and load-bearing aluminum panels together form a light, rigid and extremely safe structure. On the Coupe, the side sections and the roof are laser welded together, producing a precision seamless joint — another clear indication of how Audi strives for perfection when building its cars.The construction of the TTS has the added major benefit of optimizing distribution of the axle loads and reducing the vehicle's total weight. The Coupe's body weighs a mere 206 kilograms (454.15 lbs), of which 140 kg (308.65 lbs) is aluminum and 66 kg (145.51 lbs) steel. In the case of the TTS Roadster, whose body incorporates special reinforcements, the figure is 251 kilograms (553.36 lbs). All in all, the manual version of the Coupe weighs in at just 1,395 kilograms (3,075.45 lbs), equating to a power-to-weight ratio of 5.1 kilograms (11.24 lbs) per hp. The Roadster's weight of 1,455 kilograms (3,207.73 lbs), meanwhile, corresponds to a ratio of 5.4 kg/hp (11.90 lbs/hp).The Audi TTS instantly stands out as the dynamic flagship of the TT model line. One of the design highlights is undoubtedly the headlights - newly designed bixenon units featuring a horizontal strip of white LEDs that serve as daytime running lights. The single-frame grill in a platinum gray finish is embellished with slender chrome strips, while large air intakes in the restyled front apron add to the striking look.When viewed in profile, it is not only the large 18-inch wheels that stand out; the widened, deeper door sills are equally eye-catching. A muscular rear bumper, a gray-colored diffusor trim, plus two sets of twin tailpipes protruding from the left and the right inject the vehicle's tail with a sporty character all of its own. The spoiler on the TTS extends automatically when the speed reaches 120 km/h (74.56 mph) and retracts again when it drops back to 80 km/h (49.71 mph).Both the Coupe and the Roadster measure 4,198 millimeters (13.77 ft) long and 1,842 mm (6.04 ft) wide; the hard-top TTS is 1,345 mm (4.41 ft) in height, its open-top counterpart 1,350 mm (4.43 ft). The Roadster features an electrohydraulically operated soft top which opens and closes in twelve seconds, even on the move at speeds below 50 km/h (31.07 mph). The soft top incorporates a large glass rear window and folds in a "Z" shape. Neither a tonneau cover nor a cover flap is needed. Extra matting between the headlining and the outer skin improves insulation, and an electrically extending/retracting wind deflector shields the occupants' necks from drafts when the hood is down.

The Interior

Awaiting the passengers inside are deep-set sports seats featuring seat heating and height adjustment. They come as standard with leather/Alcantara seat covers in either black or black and silver, plus silver-colored contrast stitching. The sports seats are optionally available in Silk Nappa leather upholstery. There is also the option of the Impulse leather package, comprising black trim with silver stitching in the Coupe or chennai brown trim with espresso-colored contrast stitching in the Roadster.The cockpit in the TTS is molded around the driver like a sleek-fitting suit. Its clean-cut, sporty design and uncompromising quality of construction is another Audi trademark. Instruments with a gray background and white needles, metal pedals, aluminum trim panels, plus a multifunctional leather sports steering wheel with a rim that's flattened at the bottom add further styling touches.The driver information system with its new, high-resolution white display concentrates all important information where it can be clearly seen by the driver, and includes a timer function that is able to record lap times on race tracks. Mobile entertainment out on the road comes in the form of the chorus audio system with CD player.As well as being great fun to drive, the new sports car from Audi boasts a host of credentials that make it eminently suitable for day-to-day use. The Roadster is available with an optional load-through facility complete with removable ski bag for added practicality. The trunk has a capacity of 250 liters (8.83 cubic ft). The rear seats in the Coupe have a split-folding design, allowing luggage capacity to be increased from 290 to 700 liters (10.24 to 24.72 cubic ft.).

The Features

Sales of the TTS will begin in the early summer. The Coupe is priced at 44,900 euros and the Roadster at 47,750 euros. The TT line's dynamic top model comes generously equipped. Its list of features includes quattro permanent allwheel drive, the Audi magnetic ride adaptive suspension system, 18-inch aluminum wheels, xenon plus headlights with LED daytime running lights, plus - on the Roadster - the fully automatic soft top including power wind deflector.The interior is dominated by the multifunctional leather sports steering wheel. The extended aluminum styling and heated sports seats with their leather/Alcantara upholstery are further highlights. An automatic air conditioning system and Isofix child seat mountings on the front passenger seat are designed to enhance both comfort and safety.The list of optional extras includes two navigation systems, a Bose sound system, an iPod port, an LED interior lighting package, electrically adjustable seats, as well as the Audi adaptive light dynamic cornering light system. The S tronic dualclutch transmission is an Audi technology that remains unmatched by anything the competition has to offer.

2009 Audi TTS Coupe

2009 Audi Sportback Concept

2009 Audi Sportback Concept

Audi has unveiled Audi Sportback concept car show in 2009 North American International Automobile Show. In systematic refinement characteristic brand design elements, the five-door model offers a look at the future of Audi Design vocabulary. Since pronounced coupe-like silhouette and the large rear hatch, a length of 4.95 meters (16.24 feet), 1.93 meters (6.33 feet) and only 1.40 meters tall (4.59 feet) of the vehicle safely advanced to the luxury class.Technology Audi Sportback concept noticeably futuristic. Food is provided in the world of clean diesel technology: 3.0-liter V6 TDI clean diesel fuel almost completely eliminates the nitrogen oxides. This engine is already the emissions from all 50 U.S. states and EU6 standard is planned in force in 2014. And a number of measures to ensure the efficiency rating means that the Audi Sportback concept is expected to achieve an impressive fuel consumption figures for the 5.9 liters of diesel per 100 km (39.87 U.S. MPG).

Driving dynamics in a new guise - the idea

Since its introduction in 2004, the concept Sportback has established itself in the compact class. The success of Audi A3 Sportback exceeded even the expectations of their bodies - a lot more customers choose the four-door model with a large rear hatch, the three-door sister.But it is much more than the two extra doors, which are set by Audi A3 Sportback, in addition to the basic model. It is characterized by elegant sports coupe, versatile five-door model, modern technology and a clear sportiness - the dynamics of driving in a new guise.It also offers more space and variability thanks to the tail end of which a total of 54 millimeters (2.13 in), which is more in the three-door model.Starting the first production Sportback marked the second time that Audi start a new trend in the automotive market. The development of the first models in the Avant-seventies laid the foundation for a new class of vehicles far beyond the question of the usefulness of the classic station wagon. A notable selection futuristic and dynamic design, high quality equipment and extreme volatility were the distinctive features of each Audi Avant from the outset.Audi Sportback concept show car is now rolling to the start line with a dual mission: It had been suggested by the title, it symbolizes Sportback principle in its pure form, combined elegance, sportiness and variability.It also signals the company car to show determination not to limit the Sportback version of the compact segment. As indicated earlier in the Audi A1 Sportback concept - a star in 2008 Paris Motor Show - The brand with the four rings will sharply increase the number Sportback models on the market.

Design

Design Audi Sportback concept is almost monolithic clarity and reduce the huge number of lines. The roof, the shoulder and the sill line, appeared to have been made with a single blow. Window strip coupe with four doors frameless kept strictly flat. Viewed from the outside, gently contoured wheel wells over a 10-spoke 21-inch wheels enhance the impression accurately determine the body surface.One of the features are familiar with the two-door coupe Audi A5 more boldly accentuated here: markedly horizontal shoulder area stresses targeting the vehicle body on the road. This effect is further strengthened in front of and behind the broad, flat LED light units. The form is almost fragile promising side mirror is upturned tips - "winglets" - modern jet wings.Show car also offers a new interpretation of a single frame grille. The decision not to use the vertical pillars and a low overall height of major proportions to emphasize sports front of the vehicle. Moreover, particularly striking is the changes of the external circuit one frame grille, as well as posted on the A1 Sportback show car. Flattened the top of the bottom of the visual center of gravity and provide a vivid look at the front edge.Aerodynamically designed air intakes under the headlights to function as air deflectors, which determine the required cooling air duct at reception. They stylistic effect of strengthening the impression of width.Tail show car also apparently linked to the coupe A5. High upper edge of the rear hatch, it is surprising clearly below the surface of the rear lights.The low level of separation of edges and horizontal lines - another feature - the width of stress, and therefore the nature of sports Audi Sportback concept. The four tailpipes integrated into the body and reflector air diffuser insert tips are taken from the sports car sector.Interior design is a procedure and a purist but elegant at the same time. A large glass roof underlines the breadth and sense of space. In the driver-oriented cockpit, air vents, instrument cluster and the retracting MMI monitor contained in the aluminum filigree border.As was the case with the foreign, interior is characterized by an emphasis on horizontal lines and large surfaces. A particularly wide center console - extends from the dashboard to the back - seems to be merely an expression functions.Flat display system is realized as the retractable MMI system in the show car. When the ignition is activated, it spreads horizontally from the slot over the central air register before moving into an elegant arc in the vertical, comfortable position.High-quality materials and construction of fit and finish are obvious when looking around the interior of Audi Sportback concept, and when referring to the surface. Interior decoration is almost entirely made of leather: from headlining, dashboard, doors and all the upholstery seats all the way up to the trunk, with leather stitching emphasizing vehicle design language. Large strips of wood trim on the dashboard, center console and doors are made of oak blockboard and sports delicate horizontal patterns of light and dark lines.Since its surface piano lacquer and brushed aluminum, MMI control unit also adds to the exclusivity of the exclusive interior. Attention to detail even extends to the door opener: Its form is almost a perfect reflection of the distinctive lines of the small rear side windows - the provision of internal and external formal unity.Four sports seats to wait for the driver and passengers. Diamond-stitching of the skin resembles the classical tradition of GT. The shoulders, head and legs like premium-class touring car. With volume of 500 liters (17.66 cubic feet) a barrel generously sized and appointed with high-quality materials.

Drivetrain

The developers at Audi has chosen the world of clean diesel technology as a unit consistent with the best Audi Sportback concept show car. Six-cylinder 3.0 TDI clean diesel is equipped with a system to effectively reduce emissions of nitrogen oxides. Diesel engine Audi development engineers have joined the entire range of new measures in this latest TDI generation: Piezo Common Rail system with 2000 bar injection pressure, high exhaust gas recirculation system and optimized turbocharging result in significantly reduced emissions of the engine material. One of the most important is the sensor of a combustion chamber, allowing more precise regulation of the processes of combustion in the engine - this is the first time that such sensors have been installed on any machine in the world, marking yet another Audi innovation.The state's new-generation TDI as the definitive clean-running, high-tech diesel is sealed by down the exhaust emission control system that reduces emissions by up to 90 percent. This system uses AdBlue, biodegradable, water, an additive that is introduced in small quantities above DeNOx catalytic converter. In addition to the catalytic converter, exhaust emission control system consists of measurement modules, AdBlue tank and heated lines, as well as a developed system of sensors. Additional oxidizing catalytic converters and highly regulated diesel particulate filter round comprehensive emission control system.Due to its extremely low emissions, these modern direct injection diesel engines can be put into operation anywhere in the world, even in the U.S. state of California, which has the most stringent emission limits. Compared with the fleet average of gasoline engines, usually in the U.S., TDI boasts fuel efficiency of the use of up to 40 percent. Diesel technology, thus making a greater contribution than any other type of engine, to reduce consumption of fossil fuels. Audi offers this car in the U.S. and Europe beginning in 2009.As in the American version of Audi Q7 3.0 TDI, V6 produces 165 kW (225 hp) and 550 Nm (405.66 lb ft) of torque at Audi Sportback concept. Power is transferred to the wheels via Audi most advanced transmissions: the new 7-speed Tiptronic. Quattro permanent all-wheel-drive system ensures that the torque generated by a powerful TDI is also effectively converted to the movement and dynamism in all conditions.Weighing just 1800 kilograms (3,968.32 pounds) and the drag coefficient of 0.30, coupe will accelerate from 0 - 100 km / h (62.14 miles / h) in less than seven seconds and reach a maximum speed of 245 km / h (152.24 miles / h).Audi Sportback concept of average fuel economy in accordance with European standard ECE only 5.9 liters of diesel per 100 km (39.87 U.S. MPG), and its CO2 emissions less than 156 g / km (251.06 g / km). These figures are sensationally low for large models is achieved through extensive performance optimization measures.For example, the model electromechanical power steering consumes energy only when steering is included, but not while driving in a straight line.TDI engine is equipped with an innovative system temperature. When the engine is warming up, part of the coolant flow is diverted - another way to improve efficiency, because it helps the engine to warm up quickly. This is a significant operational savings, as many travel relatively short. Fuel pump also works only when there is a demand for fuel, and therefore uses less energy.7-speed S Tronic transmission is very efficient unit with a wide spread of gear ratios. For the first time he had been fitted with transmission oil heating systems, so that it reaches its operating temperature much earlier than intended and, therefore, has a lower level of internal friction.When coasting, Audi Sportback concept - like the Audi A4 and Audi Q5 production models - recuperates energy. This increases the power of current and used to charge batteries. This energy, which is actually for free repair, fed back into the electricity transmission system when necessary. Automatic start-stop system TDI engine shuts down to conserve energy, for example, waiting for traffic signals.And when it is on the move, tires are optimized for low resistance roll to reduce fuel consumption significantly without incurring any shortcomings in the performance area.

Driving dynamics

Audi Sportback concept show car takes the basic architecture, and many of its suspension components with the brand last and most successful model of the family: a dynamic model A4/A5 series. The dynamic suspension set standards here as well, combining precision and dynamism with a high stability and the Chief of poise. Brackets suspension, steering, wheels and brakes were designed for maximum performance and numerous aluminum components are used to keep unsprung weight to a minimum.Five new lines of the front suspension makes a significant contribution to the dynamic nature of the car. By moving further and further differential adhesion, engineers were able to re-design the front axle 154 mm (6.06 inches) forward. The result is an optimal weight distribution between the front and rear axles.Front suspension consists of five links per wheel - to communicate and control arm at the bottom, and two arms control at the top. The fifth link - track rod - joins the steering box and axle bearings. All these references are made from forged aluminum, providing a low unsprung mass, ultra-precise wheel control and a high level of security disaster. Anti-roll bar fabricated with high strength tubular saves additional weight. The basis of the rear axle is a subframe of high bending and torsional stiffness.If the sports-processing is to be combined with a high level of ride comfort, unsprung mass should be the lowest possible level. Audi holds that approach for all the rear axle components. The upper control arms and track rods are of forged aluminum. Provides high rigidity and finger flexion angles change very little when dynamic forces act on the wheel.CDC (continuous damping control) shock absorbers, similar to those that Audi already uses on the luxury Q7 SUV with air suspension, a tube, gas-filled hydraulic units with additional external valve and connecting pipe. Their operation can be continuously varied.Electromagnetically voltage proportional to the valve regulates the flow of hydraulic fluid between the inner and outer tube damper. Less than a flow cross-section of damping characteristics of a solid, more than one makes softer.The control unit applies adaptive operating characteristics when the driver has chosen via Audi drive select. It adapts to match the driver's driving style and road conditions. Even with the comfort mode, shock absorbers can be switched on in a moment to establish a firm, if desired, although not an absolute limit. They are installed in conjunction with sports suspension springs, which still provide a high level of ride comfort, even off-road use.The control unit selects the optimum damping force for the current driving situation, for example, the firm damping to prevent body roll and pitch when cornering fast or braking, lower damping force, or where the surface under the wheels of difficult and uneven.Show vehicle for the first time Audi used electromechanical steering in a car with a longitudinal engine. Its main advantage is that, unlike conventional systems, power steering, it only consumes power when in fact the steering. On average, which means fuel economy 0.2 liters per 100 kilometers, depending on driving conditions.Electromechanical Management Audi Sportback concept can also communicate with the leadership of parking assistant for fully automatic steering when parallel parking.Audi Sportback concept is equipped with ceramic brakes on all four wheels for effective deceleration even under the most demanding conditions. Compared with conventional steel discs, ceramic brakes not only in the last four times longer, up to 300,000 kilometers (186,411 miles), and also offer high resistance disappears. A significant reduction in weight also leads to benefits in terms of comfort and handling, thanks to reduced unsprung mass.The front axle 380 millimeters (14.96 inches) ceramic discs installed in combination with 21-inch wheels. The rear discs have a diameter of 356 mm (14.02 inches). Elaborate cooling geometry ventilated brake discs ensure optimum cooling of the brake discs. The firm grip on the brake disc is guaranteed at the front, 6-piston aluminum monobloc brake calipers and rear floating caliper brake.

2009 Audi Sportback Concept

2009 S6 Avant

2009 Audi S6 Avant

A winner always builds on his strengths: That's why Audi has again upgraded its luxury class Audi A6 model. Efficient engines have been added to the drive-train lineup, with innovative technologies cutting fuel consumption by about 15 percent across the whole model range. An improved suspension and new high-tech assistance system give the driver even greater control over the car. And the new-generation MMI control system is out-performing itself. The revamped Audi A6 will be launched in the German market in late summer.It's the sportiest and most popular business sedan on the market. The Audi A6 is leading the Premium C pack - both in Europe and around the world. In 2007, Audi sold about 234,000 units, giving the Audi A6 a 37 percent market share among its core competitors.

Most of the A6's sold were equipped with six- or eight-cylinder engines, permanent 4x4 quattro and a luxury assortment of optional equipment - all evidence of the high regard Audi technologies is enjoying worldwide.Its design is emphasized by a range of bold new accents, perfectly articulating the Audi A6's strong personality. The single-frame grill, bumpers, air vents and fog lights have all gotten a facelift.The optionally-available xenon plus, LED daytime running lights have been redesigned as horizontal strips with 6 LEDs each. Other options include Audi adaptive light, a dynamic cornering light system, and the high-beam assistant that automatically switches between the high and low beam.An aluminum-colored molding traversing the sides emphasizes the Audi A6's dynamic contour.

At 4.93 meters (16.17 ft) long, 1.86 meters (6.10 ft) wide, and 1.46 meters (4.79 ft) high, little has changed in the sedan's generous proportions. The gentle lip on the trunk, integrated chrome strip on the bumper, broad diffuser and straight exhaust pipes are part and partial of the revamped rear end. The bipartite rear lights with LED technology have also gotten a new look: narrow and wide, they taper inward on the sedan. And there are 13 exterior colors to choose from, including five new ones.The Audi A6's spacious interior with its clean and elegant contours and perfect craftsmanship is characteristic of this luxury brand. The rear seats are extremely comfortable and the L-shaped headrests improve the driver's rear view visibility.

As an option, the back seats can be fitted with a comfortable 2-seater bench. A package of elaborate features makes sure the noise level is cut by almost half, particularly within critical frequency ranges.The instrument panel uses new higher-resolution graphics; and a new frame better accentuates the display (color in the optional MMI navigation system). Tastefully-appointed chrome trim, even on the spokes of the steering wheel, call attention to its overall elegance and inlays are available in either aluminum look or fine woods.As is expected of an Audi, the interior designers have made sure all the colors and materials match. Standard seats can be optionally upholstered with a new material; the sport seats are available in Valcona leather.

Soft armrests on the doors increase comfort, while the integrated headrest system reduces the danger of whiplash.Audi is now offering an S-line sports package for the most dynamic of drivers. The package includes enhanced performance features like 18-inch wheels and sports suspension that lowers the ride height by 30 millimeters (1.18 in). Its sporty seats, decorative inlays and upholstery give the black-trimmed interior a feeling of even more exclusivity and the S-line exterior package provides more drama. Features from this Audi exclusive program are tailor-made to fit the Audi A6's luxury-seeking mavericks.One of the major strengths of the Audi A6 lies in its broad selection of engines: six gas and four diesels use direct fuel injection and cutting-edge FSI, TFSI and TDI technologies in a choice of four, six or eight cylinders.

Whether stick shift, convenient tiptronic or high-efficiency multitronic, the energy literally flows to the front wheels, or all four wheels for that matter. Its engines are both powerful and efficient. New measures have been introduced to optimize engines and minimize fuel consumption without sacrificing one ounce of driving pleasure. Fuel consumption over the whole Audi A6 family has been lowered by about 15 percent.The smallest gas engine is the 2.0 TFSI, a 125 kW (170 hp) turbocharged four-cylinder unit. On the other end of the spectrum is the 4.2 FSI, a 257 kW (350 hp) V8 engine. Audi V6 models can be equipped with one of its two new 2.8 liter FSI engines; the 140 kW (190 hp) or the 162 kW (220 hp).

Both engines feature the innovative Audi Valvelift System (AVS), which manages the inlet valve timing so that there is more torque and less fuel consumption. Regardless of which 2.8 FSI engine the Audi A6 sedan is fitted, average fuel consumption is only 8.2 liters per 100 kilometers (28.68 US mpg) for the 190 hp, 6-speed manual shift or 8.4 liters per 100 kilometers (28.00 US mpg) for the 220 hp multitronic CVT.With its 3-liter displacement and 213 kW (290 hp) power output, the V6 is a particularly exciting newcomer. Audi has designed the perfect package for each one of its engine. That's why the 3.0 TFSI is fitted with a supercharger. From now on "T" doesn't just stand for turbocharged - it stands for supercharged. Supercharger technology does not mean increased consumption - but the short intake paths do mean instantaneous response.

And it's got full power build-up even at low engine speeds: from 2500 1/min to 4850 1/min, the torque curve is broad and flat at 420 Nm (309.78 lb-ft).The 3.0 TFSI comes with tiptronic and quattro drive train. The Audi A6 sedan accelerates from 0 to 100 km/h (62.14 mph) in 5.9 seconds and keeps on going as it presses to its electronically-regulated maximum speed of 250 km/h (155.34 mph). This is the kind of performance that only an eight-cylinder engine would have been able to deliver a few years ago. At 9.5 liters per 100 kilometers (24.76 US mpg) on the EU cycle, the supercharged V6 is amazingly economical. The 3.0 TFSI's combination of dynamic performance and low consumption is one more example of Audi's successful efficiency strategy.

The Audi A6 TDI engines give further evidence of just how closely Audi has been able to align sporty performance and efficiency. Fuel is delivered by the extremely sophisticated and quiet system of common rails with rapid-action piezo injectors and an injection pressure of 1800 bar (26,106.79 psi). The two V6 TDI engines (2.7 TDI with 140 kW (190 hp) and 3.0 TDI with 176 kW (240 hp) have peak torques of 380 Nm (280.27 lb-ft) and 450 Nm (331.90 lb-ft), respectively.At the lower end of the diesel program is the four-cylinder 2.0 TDI engine, which is available in two versions: the 125 kW (170 hp), expected in fall 2008, and the 100 kW (136 hp). The basic version is an especially efficient e-model known as the 2.0 TDIe, which uses a six-speed manual shift or automatic multitronic transmission to deliver 320 Nm (236.02 lb-ft) of torque to the front wheels. With multitronic it sprints from 0 to 100 km/h (62.14 mph) in 9.9 seconds, and continues on to a top speed of 204 km/h (126.76 mph).

Yet its average fuel consumption with a manual shift gearbox is only 5.3 liters per 100 km (44.38 US mpg), equivalent to CO2 emissions of app. 139 grams per kilometer (224 grams per mile).The key to achieving such exemplary values is the strategic deployment of innovative technologies. The power steering pump operates on demand; the alternator regenerates electrical energy when coasting thereby reducing load off the engine. By lowering the ride height by 20 millimeters (0.79 in) and other aerodynamic fine-tuning, the drag coefficient has been reduced to cD = 0.28.The transmission can be used longer in the upper two gears. Any manual-shift Audi A6 with Driver Information System, even the 2.0 TDIe, can opt to have the shift indicator displayed in the instrument panel. The icon lets the driver know which gear is most economical under actual circumstances.

Audi quattro four-wheel drive is available on all engines with 140 kW (190 hp) or above and is standard equipment on high-end aggregates. The manual shift, 140 kW (190 hp) 2.8 FSI notwithstanding, this is the very latest generation quattro with the newly emphasized rear-end design. It gives the Audi A6 tremendous driving characteristics, remarkable grip and superior safety. Under normal conditions, the torque split is 40 percent to the front wheels and 60 percent to the rear. The mechanically-operated Torsen differential immediately diverts most of the power to the axle, providing better traction whenever the need arises - in extreme cases, up to 65 percent to the front or 85 percent to the rear.In fine-tuning the Audi A6, two key objectives were identified - increasing its comfort while retaining its sporty character. With new large-diameter, front-axle shock absorbers operating within an optimized valve system, Audi engineers were able to achieve both goals.

Every other aspect of the suspension set-up has been improved, including the automotive spring response.The Audi A6 can be equipped with factory-fitted adaptive air suspension so that the driver can vary his response and the characteristics of the adaptive shock absorbers into three styles. High-powered engines come equipped with larger 17-inch wheel brakes. Audi can also be fitted with a tire pressure monitoring system, which is entirely wear-free and maintenance-free. The customer can opt for run-flat tires, which limit the car to 50 kilometers (31 miles) should there be a drop in air pressure.Audi has integrated several new high-tech assistance systems.

The new Audi side assist kicks in to help drivers when changing lanes at speeds over 30 km/h (18.64 mph), ensuring a stress-free and superior drive. Using radar sensors, Audi Side Assist is able to detect other cars up to 50 meters (164.04 ft) away: a signal on the outside mirror lights up should changing lanes pose a threat. Audi lane assist helps keep drivers in their own lane, radar-assisted adaptive cruise control keeps a steady distance to the vehicle ahead, and Audi parking system advanced has a rearview camera.Since its debut in 2002, the Audi Multi Media Interface system (MMI) has been setting the standard for perfectly controlling any number of functions. The Audi A6 comes equipped with the latest MMI generation, including the top-of-the-line MMI Navigation plus. Its basic construction has not changed. The central control knob can still be found on the middle console between the front seats and the operation is still carried out using large buttons.

The new joystick capping the control knob means the MMI Navigation plus can be operated even more intuitively.MMI Navigation plus is an ultimate solution, pioneering in an entirely new system generation with high-tech portfolio and ground-breaking standards. Special features include a CD/DVD/Navigation combination drive with a 40 GB hard drive capacity which can be used to store MP3s and up to 5000 addresses.With its 7-inch, high-resolution screen, the monitor on this ultimate navigation system is truly innovative. The image is rich in contrast and incredibly sharp even under difficult lighting conditions. It also has an optional TV tuner that receives digital programs (DVB-T) in perfect quality.The new navigation system has another innovation. A new bird's eye picture mode shows landscapes in topographical relief - in full detail, complete with three-dimensional images of landmark buildings. The monitor has a new operating principle: when adjusting specific functions like air conditioning or seat heating, a pop-up window appears at the right rather than taking over the whole screen.Most of the new features found in the Audi A6 Sedan and Audi A6 Avant are also present in two other models: the versatile Audi A6 allroad quattro and the dynamic Audi S6.

The Audi A6 allroad quattro can be powered either by the new 213 kW (290 hp) 3.0 TFSI engine or one of the two powerful V6 TDI diesels. The V10 on the Audi S6 has 320 kW (435 hp). Changes made to the sports model are limited to interior and exterior optical details.The upgraded Audi A6 will be available in German dealer showrooms as of mid-October 2008. Starting at 34,200 Euros for the Audi A6 2.0 TFSI sedan, Audi's initial list prices have remained virtually unchanged, despite all the extensive innovations.

2009 S6 Avant

2009 Audi S6

2009 Audi S6

A winner always builds on his strengths: That's why Audi has again upgraded its luxury class Audi A6 model. Efficient engines have been added to the drive-train lineup, with innovative technologies cutting fuel consumption by about 15 percent across the whole model range. An improved suspension and new high-tech assistance system give the driver even greater control over the car. And the new-generation MMI control system is out-performing itself. The revamped Audi A6 will be launched in the German market in late summer.It's the sportiest and most popular business sedan on the market.

The Audi A6 is leading the Premium C pack - both in Europe and around the world. In 2007, Audi sold about 234,000 units, giving the Audi A6 a 37 percent market share among its core competitors. Most of the A6's sold were equipped with six- or eight-cylinder engines, permanent 4x4 quattro and a luxury assortment of optional equipment - all evidence of the high regard Audi technologies is enjoying worldwide.Its design is emphasized by a range of bold new accents, perfectly articulating the Audi A6's strong personality. The single-frame grill, bumpers, air vents and fog lights have all gotten a facelift.The optionally-available xenon plus, LED daytime running lights have been redesigned as horizontal strips with 6 LEDs each.

Other options include Audi adaptive light, a dynamic cornering light system, and the high-beam assistant that automatically switches between the high and low beam.An aluminum-colored molding traversing the sides emphasizes the Audi A6's dynamic contour. At 4.93 meters (16.17 ft) long, 1.86 meters (6.10 ft) wide, and 1.46 meters (4.79 ft) high, little has changed in the sedan's generous proportions. The gentle lip on the trunk, integrated chrome strip on the bumper, broad diffuser and straight exhaust pipes are part and partial of the revamped rear end. The bipartite rear lights with LED technology have also gotten a new look: narrow and wide, they taper inward on the sedan. And there are 13 exterior colors to choose from, including five new ones.

The Audi A6's spacious interior with its clean and elegant contours and perfect craftsmanship is characteristic of this luxury brand. The rear seats are extremely comfortable and the L-shaped headrests improve the driver's rear view visibility. As an option, the back seats can be fitted with a comfortable 2-seater bench. A package of elaborate features makes sure the noise level is cut by almost half, particularly within critical frequency ranges.The instrument panel uses new higher-resolution graphics; and a new frame better accentuates the display (color in the optional MMI navigation system). Tastefully-appointed chrome trim, even on the spokes of the steering wheel, call attention to its overall elegance and inlays are available in either aluminum look or fine woods.

As is expected of an Audi, the interior designers have made sure all the colors and materials match. Standard seats can be optionally upholstered with a new material; the sport seats are available in Valcona leather. Soft armrests on the doors increase comfort, while the integrated headrest system reduces the danger of whiplash.Audi is now offering an S-line sports package for the most dynamic of drivers. The package includes enhanced performance features like 18-inch wheels and sports suspension that lowers the ride height by 30 millimeters (1.18 in). Its sporty seats, decorative inlays and upholstery give the black-trimmed interior a feeling of even more exclusivity and the S-line exterior package provides more drama.

Features from this Audi exclusive program are tailor-made to fit the Audi A6's luxury-seeking mavericks.One of the major strengths of the Audi A6 lies in its broad selection of engines: six gas and four diesels use direct fuel injection and cutting-edge FSI, TFSI and TDI technologies in a choice of four, six or eight cylinders. Whether stick shift, convenient tiptronic or high-efficiency multitronic, the energy literally flows to the front wheels, or all four wheels for that matter. Its engines are both powerful and efficient. New measures have been introduced to optimize engines and minimize fuel consumption without sacrificing one ounce of driving pleasure. Fuel consumption over the whole Audi A6 family has been lowered by about 15 percent.

The smallest gas engine is the 2.0 TFSI, a 125 kW (170 hp) turbocharged four-cylinder unit. On the other end of the spectrum is the 4.2 FSI, a 257 kW (350 hp) V8 engine. Audi V6 models can be equipped with one of its two new 2.8 liter FSI engines; the 140 kW (190 hp) or the 162 kW (220 hp). Both engines feature the innovative Audi Valvelift System (AVS), which manages the inlet valve timing so that there is more torque and less fuel consumption. Regardless of which 2.8 FSI engine the Audi A6 sedan is fitted, average fuel consumption is only 8.2 liters per 100 kilometers (28.68 US mpg) for the 190 hp, 6-speed manual shift or 8.4 liters per 100 kilometers (28.00 US mpg) for the 220 hp multitronic CVT.

With its 3-liter displacement and 213 kW (290 hp) power output, the V6 is a particularly exciting newcomer. Audi has designed the perfect package for each one of its engine. That's why the 3.0 TFSI is fitted with a supercharger. From now on "T" doesn't just stand for turbocharged - it stands for supercharged. Supercharger technology does not mean increased consumption - but the short intake paths do mean instantaneous response. And it's got full power build-up even at low engine speeds: from 2500 1/min to 4850 1/min, the torque curve is broad and flat at 420 Nm (309.78 lb-ft).The 3.0 TFSI comes with tiptronic and quattro drive train. The Audi A6 sedan accelerates from 0 to 100 km/h (62.14 mph) in 5.9 seconds and keeps on going as it presses to its electronically-regulated maximum speed of 250 km/h (155.34 mph).

This is the kind of performance that only an eight-cylinder engine would have been able to deliver a few years ago. At 9.5 liters per 100 kilometers (24.76 US mpg) on the EU cycle, the supercharged V6 is amazingly economical. The 3.0 TFSI's combination of dynamic performance and low consumption is one more example of Audi's successful efficiency strategy.The Audi A6 TDI engines give further evidence of just how closely Audi has been able to align sporty performance and efficiency. Fuel is delivered by the extremely sophisticated and quiet system of common rails with rapid-action piezo injectors and an injection pressure of 1800 bar (26,106.79 psi).

The two V6 TDI engines (2.7 TDI with 140 kW (190 hp) and 3.0 TDI with 176 kW (240 hp) have peak torques of 380 Nm (280.27 lb-ft) and 450 Nm (331.90 lb-ft), respectively.At the lower end of the diesel program is the four-cylinder 2.0 TDI engine, which is available in two versions: the 125 kW (170 hp), expected in fall 2008, and the 100 kW (136 hp). The basic version is an especially efficient e-model known as the 2.0 TDIe, which uses a six-speed manual shift or automatic multitronic transmission to deliver 320 Nm (236.02 lb-ft) of torque to the front wheels. With multitronic it sprints from 0 to 100 km/h (62.14 mph) in 9.9 seconds, and continues on to a top speed of 204 km/h (126.76 mph).

Yet its average fuel consumption with a manual shift gearbox is only 5.3 liters per 100 km (44.38 US mpg), equivalent to CO2 emissions of app. 139 grams per kilometer (224 grams per mile).The key to achieving such exemplary values is the strategic deployment of innovative technologies. The power steering pump operates on demand; the alternator regenerates electrical energy when coasting thereby reducing load off the engine. By lowering the ride height by 20 millimeters (0.79 in) and other aerodynamic fine-tuning, the drag coefficient has been reduced to cD = 0.28.The transmission can be used longer in the upper two gears. Any manual-shift Audi A6 with Driver Information System, even the 2.0 TDIe, can opt to have the shift indicator displayed in the instrument panel.

The icon lets the driver know which gear is most economical under actual circumstances.Audi quattro four-wheel drive is available on all engines with 140 kW (190 hp) or above and is standard equipment on high-end aggregates. The manual shift, 140 kW (190 hp) 2.8 FSI notwithstanding, this is the very latest generation quattro with the newly emphasized rear-end design. It gives the Audi A6 tremendous driving characteristics, remarkable grip and superior safety. Under normal conditions, the torque split is 40 percent to the front wheels and 60 percent to the rear. The mechanically-operated Torsen differential immediately diverts most of the power to the axle, providing better traction whenever the need arises - in extreme cases, up to 65 percent to the front or 85 percent to the rear.

In fine-tuning the Audi A6, two key objectives were identified - increasing its comfort while retaining its sporty character. With new large-diameter, front-axle shock absorbers operating within an optimized valve system, Audi engineers were able to achieve both goals. Every other aspect of the suspension set-up has been improved, including the automotive spring response.The Audi A6 can be equipped with factory-fitted adaptive air suspension so that the driver can vary his response and the characteristics of the adaptive shock absorbers into three styles. High-powered engines come equipped with larger 17-inch wheel brakes. Audi can also be fitted with a tire pressure monitoring system, which is entirely wear-free and maintenance-free.

The customer can opt for run-flat tires, which limit the car to 50 kilometers (31 miles) should there be a drop in air pressure.Audi has integrated several new high-tech assistance systems. The new Audi side assist kicks in to help drivers when changing lanes at speeds over 30 km/h (18.64 mph), ensuring a stress-free and superior drive. Using radar sensors, Audi Side Assist is able to detect other cars up to 50 meters (164.04 ft) away: a signal on the outside mirror lights up should changing lanes pose a threat. Audi lane assist helps keep drivers in their own lane, radar-assisted adaptive cruise control keeps a steady distance to the vehicle ahead, and Audi parking system advanced has a rearview camera.Since its debut in 2002, the Audi Multi Media Interface system (MMI) has been setting the standard for perfectly controlling any number of functions.

The Audi A6 comes equipped with the latest MMI generation, including the top-of-the-line MMI Navigation plus. Its basic construction has not changed. The central control knob can still be found on the middle console between the front seats and the operation is still carried out using large buttons. The new joystick capping the control knob means the MMI Navigation plus can be operated even more intuitively.MMI Navigation plus is an ultimate solution, pioneering in an entirely new system generation with high-tech portfolio and ground-breaking standards. Special features include a CD/DVD/Navigation combination drive with a 40 GB hard drive capacity which can be used to store MP3s and up to 5000 addresses.With its 7-inch, high-resolution screen, the monitor on this ultimate navigation system is truly innovative.

The image is rich in contrast and incredibly sharp even under difficult lighting conditions. It also has an optional TV tuner that receives digital programs (DVB-T) in perfect quality.The new navigation system has another innovation. A new bird's eye picture mode shows landscapes in topographical relief - in full detail, complete with three-dimensional images of landmark buildings. The monitor has a new operating principle: when adjusting specific functions like air conditioning or seat heating, a pop-up window appears at the right rather than taking over the whole screen.Most of the new features found in the Audi A6 Sedan and Audi A6 Avant are also present in two other models: the versatile Audi A6 allroad quattro and the dynamic Audi S6.

The Audi A6 allroad quattro can be powered either by the new 213 kW (290 hp) 3.0 TFSI engine or one of the two powerful V6 TDI diesels. The V10 on the Audi S6 has 320 kW (435 hp). Changes made to the sports model are limited to interior and exterior optical details.The upgraded Audi A6 will be available in German dealer showrooms as of mid-October 2008. Starting at 34,200 Euros for the Audi A6 2.0 TFSI sedan, Audi's initial list prices have remained virtually unchanged, despite all the extensive innovations.

2009 Audi S6

2009 Audi S4 Avant

2009 Audi S4 Avant

Audi has introduced its new sporty top models in the midsize class - the Audi S4 and the Audi S4 Avant. Their engine, a three-liter V6 with direct fuel injection and mechanical turbocharging, delivers a powerful 245 kW (333 hp). It accelerates the Audi S4 to 100 km/h (62.14 mph) in just 5.1 seconds, but on average only uses 9.7 liters of fuel per 100 km (24.25 US mpg). The quattro permanent all-wheel drive system transfers its power to the road in style, which is then converted by the sport suspension into dynamic handling. Upon request, Audi can equip the new Audi S4 and S4 Avant with innovative technologies that further increase their lead over the competition. The seven-speed S tronic changes gears with lightning speed, and the new sport differential distributes the torque as needed between the rear wheels. The new Audi S4 will be unveiled to the public for the first time at the Paris Auto Show from October 2 to 19.The heart of the new Audi S4 and Audi S4 Avant is a completely redesigned engine. The 3.0 TFSI, the newest member of the Audi V-engine family, is an outstanding example of how the brand with the four rings blends performance and efficiency. The V6 generates its power from a displacement of 2,995 cc, is equipped with a supercharger, and delivers 245 kW (333 hp). The sedan sprints to100 km/h (62.14 mph) in just 5.1 seconds, and the Avant in 5.2 seconds: they both have an electronically governed top speed of 250 km/h (155.34 mph).The "T" in the 3.0's TFSI nomenclature no longer merely stands for "turbo", but rather for the concept of supercharging in general - extensive testing on the big V6 has proven the superiority of mechanical charging. In conjunction with direct injection it is far superior to twin turbochargers, both in terms of packaging and of starting performance and responsiveness.The compressor is so compact that it easily fits inside the 90-degree V of the cylinder banks, in place of the intake manifold. Two four-vane rotary pistons counter-rotate inside the turbocharger at up to 23,000 rpm. Two charge-air coolers are integrated into the housing and are connected to a separate coolant circuit. An impressive array of measures keeps the noise generated by the compressor to a minimum.The engine-driven belt that powers the mechanical charger provides full thrust right from idling speed. The 3.0 TFSI delivers its maximum 440 Nm (324.53 lb-ft) at 2,500 rpm and maintains this constantly until 4,850 rpm. In fourth gear, the vehicle accelerates from 80 to 120 km/h (49.71 to 74.56 mph) in just 4.4 seconds. Thanks to the extremely short gas paths, the sonorous, supercharged V6 responds spontaneously to the throttle, even more so than a naturally aspirated engine of the same displacement.Furthermore, the new 3.0 TFSI achieves exemplary fuel efficiency. On average, the sedan uses 9.7 liters of fuel per 100 km (24.25 US mpg), and the Avant 9.9 liters per 100 km (23.76 US mpg) - an improvement of 3.4 liters (26 percent) compared with its predecessor. The Audi technology of gasoline direct injection was what made this great efficiency possible in the first place. Unlike conventional concepts, it allows the compressor to be located behind the throttle valve. In view of the low density of the intake air at loads below supercharging level and when coasting, its rotors are free-running and the amount of power required to drive them is low.

Dynamism and efficiency: The new seven-speed S tronic

The V6 power in the new Audi S4 and Audi S4 Avant flows into a six-speed transmission, fitted as standard, which shifts quickly and precisely. As an option, Audi offers a state-of-the-art dual-clutch transmission - the seven-speed S tronic is extremely dynamic and highly efficient. The driver has the option of driving in fully automatic mode or selecting the gears with paddles on the steering wheel or directly with the shift lever - all of which provide impressively quick gearshifts. The gearshift feel is dynamic, comfortable and very precise - typically Audi.The seven-speed S tronic consists of two separate transmissions and uses two multidisk clutches that control the various gears. The large K1 clutch guides the power via a solid shaft to the pinions for gears 1, 3, 5 and 7. A hollow shaft rotates around the solid shaft; it is connected to the compact K2 clutch, which is integrated within its larger counterpart and controls the pinions for gears 2, 4, 6 and reverse gear.Both transmission structures are continuously active, but only one is powered at a time by the engine. For example, when the driver accelerates in third gear, the fourth gear is already engaged in the second transmission structure. The shifting process takes place as the clutch changes - K1 opens and K2 closes with lightning speed. This process takes only a few hundredths of a second and is completed without interrupting traction. It is so comfortable and smooth that the driver hardly notices it.The seven-speed S tronic is designed for maximum efficiency. It operates with very high efficiency and its intelligent control system maximizes fuel economy in automatic mode. With its wide gear ratio spread of 8.0:1 the seven-speed S tronic easily exploits the tremendous power and superior torque of the 3.0 TFSI.The quattro permanent all-wheel drive system transfers power to the road with supreme ease. Under regular driving conditions, it sends 40 percent of its torque to the front wheels and 60 percent to the rear wheels - a slightly rear-biased, sporty characteristic. Where necessary, it can vary distribution within fractions of a second.The quattro drive system ensures safe self-steering characteristics, high stability and excellent traction in comparison with rear-wheel-drive competitors.Customized torque distribution: The sport differential with Audi drive selectThe new, active sport differential ideally complements the quattro drive system and lends it even greater fascination. When the steering wheel is turned or the car accelerated in a corner, power is redirected in a controlled manner to the outer rear wheel, literally pushing the vehicle through the corner. The system intervenes to counter any signs of understeer or oversteer. For the driver, this means reduced effort at the steering wheel and even higher lateral acceleration.The active sport differential is a new type of rear-axle differential. A superposition gear was added to both the left and right sides of the classic differential; it rotates ten percent faster than the wheel's drive shaft.Both components can be connected through a multidisk clutch, which runs in an oil bath, and is operated by an electro-hydraulic actuator. In most driving situations, the clutch can divert almost the complete input torque to one wheel in this way.Controlled by an array of sensors and a high-speed computer, the active sport differential needs less than 100 milliseconds to redirect power. Drivers can adapt their manner of driving, along with characteristics for the load changes, to three performance maps. Unlike competitors' systems, the Audi sport differential is just as effective when the engine is driving the wheels as it is on the overrun or when the car is coasting freely.The new Audi S4 and Audi S4 Avant are well-trained athletes. Their five-link front axle and the self-tracking trapezoidal-link rear axle are of a highly sophisticated design; both axles are made almost entirely of aluminum and are therefore very lightweight. The low-mounted steering gear transmits the steering forces to the wheels without any lag time and gives the driver a precise and sensitive road feel.The spontaneity of Audi's new midsize athletes is fascinating, and they possess the precise reactions of a thoroughbred sports car. In these transmissions, the differential is positioned in front of the clutch, which made it possible to move the engine 154 mm (6.06 in) forwards compared with the predecessor model. This unusual layout perfectly evens out the axle loads, and also affords the long wheelbase of 2,811 mm (9.22 ft) exceptional stability.The chassis of both new S models received stiffer axle bearings, and the sporty tuning with stiff shock absorbers puts the chassis 20 mm (0.79 in) closer to the road. Huge high-performance and fade-resistant brakes sit behind the 18-inch and optional 19-inch cast aluminum wheels. The black-painted brake calipers - at the front with the S4 logo - grip the ventilated disks with newly developed brake pads.

Audi drive select: The driving dynamics system

The Audi drive select driving dynamics system is a further high-end technology featured on the new Audi S4 and Audi S4 Avant. It accesses the throttle response characteristics, the shift points for the seven-speed S tronic and supports the speed-dependent servotronic steering. With the press of a button, the driver can decide whether these systems should operate in "comfort," "auto" or "dynamic" mode. If the vehicle is equipped with the MMI operating system, a fourth mode is available which the driver can program according to his own personal tastes and preferences.Audi drive select can only be ordered in combination with one or more of three additional technologies - the sport differential, adaptive control for the shock absorbers, or dynamic steering, which is an additional high-tech solution. Its zero-play superposition gear, which is driven by an electric motor, varies the ratio by almost 100 percent depending on the speed being driven. In terms of driver safety, the dynamic steering assists the ESP stabilization program by using steering intervention to keep the new Audi S4 and Audi S4 Avant on track when cornering at the handling limits. In many instances, the system renders ESP intervention superfluous.For the adaptive damper control system, hydraulic gas-pressurized shock absorbers are used which operate by means of additional, electrically actuated valves. They control the flow of hydraulic liquid, thus regulating the shock-absorbing characteristics. A high-performance control unit analyzes the signals it receives from 14 sensors, and calculates the damping power for each individual wheel 1,000 times per second.

An athletic look: The design

Both the Audi S4 and the Audi S4 Avant look athletic and muscular on the road. Some of the most striking modifications to the exterior design are the special aprons, the aluminum-look exterior mirrors, the 18-inch S-design light-alloy wheels, the side rocker panels, the restrained spoiler at the rear and the quadruple exhaust system. The xenon plus headlights with daytime running lights and the rear lights are further distinctive touches.The interior also underscores the sporty expertise that is the hallmark of both new S models. The sports seats have electric lumbar supports and pull-out thigh supports, and the instrument panel features gray dials with white needles. They also bear the S4 emblems, as do the multifunction sport steering wheel and the key. The interior is in black, with brushed aluminum inlays. Carbon and birch wood inlays are also available, as are stainless steel mesh inlays.Optional assistance systems provide the driver with even greater control on the road. The adaptive cruise control (ACC) regulates the distance to the vehicle in front, and braking guard issues warnings regarding possible rear-end collisions. The Audi side assist makes changing lanes safer; the Audi parking system advanced makes backing into a parking space easier.With regard to multimedia, Audi offers an attractive technology package. The communications and entertainment technologies portfolio includes the competition-beating MMI operating system, various types of radio and sound systems all the way up to the high-end solution from Bang & Olufsen, two navigation systems, an iPod interface, and a highly convenient Bluetooth car phone.Luxurious features such as the three-zone deluxe automatic air conditioning and the dynamic cornering light system known as adaptive light round out the optional equipment.

2009 Audi S4 Avant