The new A3, which celebrates its premiere at the 2012 Geneva Motor Show, presents the combined technological competence of Audi in compact format. In its lightweight body, the architectures of its interior and user interfaces – the three-door car is once again setting standards in its class. Its engines impress with their efficiency and power, and the range of driver assistance systems and infotainment solutions is unparalleled in the premium compact class.

Exterior design

The new Audi A3 was designed with succinct lines, and its dimensions are compact. Its length of 4,237 mm (13.90 feet) and height of 1,421 mm (4.66 feet) are practically the same as on the previous model. And yet its proportions are sportier: The car’s wheelbase grew by 23 mm (0.91 inches) to 2,601 mm (8.53 feet). Its front overhang is now shorter, and its width increased by 12 mm (0.47 inches) to 1,777 mm (5.83 feet).

The A3’s progressive formal language visualizes all of the passion with which Audi engineers produces automobiles. The defining element at the front is the very sculptural single-frame radiator grille with its six corners; the engine hood continues its lines. Large air intakes at the front reflect the power of the engines.

The headlights are flat and integrate a wave-shaped lower edge. As an option, Audi can deliver xenon plus units; the LED bands that form the daytime running lights make the A3 unmistakable – especially at night.

On the sides of the body, the sharply delineated tornado line – another classic element of Audi design – gives structure to the area below the windows. Above the side sills, this dynamic line rises sharply upward.

Dynamically flared metal surfaces and large wheel arches lend a powerful appearance to the new A3. The low angles of the slender C-pillars and the roof that sweeps back into a modest spoiler convey the sporty look of a coupe.

Styling at the rear with the spoiler edge above the diffuser emphasizes the width of the new premium compact. The split taillights – in LED technology when equipped with xenon plus headlights – show a variation on the inner architecture of the front headlights. The trunk lid has a sculpted, three-dimensional look. The new A3 sports either one or two tailpipes on the left side in its diffuser insert, depending on the engine type.

13 paint colors are available, and an optional high-gloss package offers visual highlights. The S line exterior package with its distinctive accents will appeal to sport-oriented customers in particular.

The Audi ultra lightweight construction principle

Ultra lightweight construction has long been a success formula and a hallmark of the Audi brand. By no means is it limited to a specific material; instead, the motto is: “The right material in the right place for optimal function.” True to this maxim, engineers developed a multi-material body for the new A3.

Components made of form-hardened and hot-formed steels form a strong structure in the underbody area, A- and B-pillars and the roof arch. In many other body areas, high-strength and ultra-high-strength steel grades are used. The engine hood and fenders are made of aluminum, which saves over nine kilograms (19.84 lb) in weight.

The lightweight body and downsizing engines produce large secondary effects in the overall vehicle; many components of the chassis, the exhaust system and interior have reduced weights. The A3 1.4 TFSI weighs just 1,175 kg (2,590.43 lb) – which is 80 kg (176.37 lb) less than the previous model and sets an impressive standard in the premium compact class.

The body of the Audi A3 exhibits other strengths. It has a high degree of impact safety; it is rigid and acoustically comfortable; a sound-insulating windshield is standard equipment, and numerous other measures were taken to reduce interior noise in the new A3, even at high speeds.

Aerodynamic refinements, including a covered underbody and engine compartment, result in a low Cd value of 0.31.

Interior and equipment

The sporty-progressive lines of the exterior are also reflected in the interior of the new A3. As in large Audi models, the cockpit wraps around the driver in a curve. The instrument panel is slender and level; it appears to hover above the visually lightweight centre console that is angled towards the driver.

The high-end impression conveyed by the interior of the new A3 was created by the capable hands of Audi designers who selected its colors and materials, and it is a reflection of the Audi’s stringent quality standards. The interior layout is different for the different equipment lines – Attraction is the modern, Ambition the sporty and Ambiente the luxurious variant.

Audi delivers the interior in the quiet colors black and titanium gray; as an alternative, fresh accents are created by pashmina beige, chestnut brown and capri orange. There are optional seat covers in different qualities of leather and a leather/Alcantara variant. The S line sport package offers many exclusive details and a black look throughout the interior. The Audi design selection capri orange opens up a new, highly contemporary color world.

The rear seating area of the new Audi A3 offers space for three persons, and easy entry is a standard convenience feature. The newly developed front seats offer excellent support and contours; their low mounting positions emphasize the sporty character of the three-door car. The driver takes a seat behind a new steering wheel design that has three or four spokes, depending on the equipment line, and shift paddles; multifunction keys are available as an option.

Fine details highlight the interior. The four large, round air vents in jet design are classic elements, and they serve a secondary innovative function: Simply by pulling the nozzle along its axis, the air stream can be adjusted from draft-free wide dispersion to a directed stream of ventilation air. The air conditioning control panel has a fascia in Piano finish black.

The new type of molded decorative panels on the contoured front of the instrument panel and in the doors can be delivered in aluminum as an option.

Intuitively simple user interfaces – this is one of Audi’s competence domains. All of the buttons, switches and controls are positioned precisely where one expects them. The display of the driver information system (in color on the Ambition and Ambiente lines) positioned between the two large round instruments shows all key information, some in richly detailed 3D graphics – which generates a fascinating effect.

The trunk of the new Audi A3 offers a basic capacity of 365 liters (12.89 cubic feet); cargo capacity grows to 1,100 liters (38.85 cubic feet) when the split rear seatbacks are folded. The cargo floor can be placed on two levels – either for maximum volume or alternatively as a level cargo floor. As an option, Audi can supply a load-through hatch with ski sack, a reversible mat and a storage package for the interior and the trunk.

In all equipment lines, the new Audi A3 offers a standard air conditioning system with manual control, height adjustable front seats, on-board computer with efficiency program and a full package of safety restraint systems; the seven airbags include a knee airbag for the driver. In the A3 Ambition, standard features include front fog lights and highly adjustable sport seats.

Audi also offers many attractive extras. They include the LED interior lighting package (standard in the Ambiente), a panoramic glass sunroof, sport seats, heated seats, convenience key for keyless vehicle access, deluxe automatic air conditioning with economy mode, auxiliary heating and adaptive light for the xenon plus headlights, which can be supplemented with variable headlight range control.

The new Audi A3 will arrive at dealers in Germany starting in summer 2012. The entry-level version, which will follow around the end of this year, is listed at a price of 21,600 euros.

TDI and TFSI Drivetrain

At its launch, Audi is offering one TDI and two TFSI engines for the new A3; these three four-cylinder engines were developed from the ground up. They bundle many efficiency technologies – direct injection, turbocharging, innovative thermal management and the start-stop system. The engine downsizing concept – reducing displacement by supercharging – stands for high power with low fuel consumption. Compared to the previous model, fuel consumption has been reduced by an average value of about 12 percent.

The 1.4 TFSI, with its 1,395 cc engine displacement, produces 90 kW (122 hp) of power and 200 Nm (147.51 lb-ft) of torque; the latter is already available from 1,500 rpm. This engine accelerates the A3 from zero to 100 km/h (62.14 mph) in 9.3 seconds and up to a top speed of 203 km/h (126.14 mph). Its combined fuel consumption is a mere 5.2 liters per 100 km (45.23 US mpg), equivalent to CO2 emissions of 120 grams per km (193.12 g/mile).

The 1.8 TFSI – with an engine displacement of 1,798 cc – produces 132 kW (180 hp) and outputs 250 Nm (184.39 lb-ft) of torque between 1,250 and 5,000 rpm. It combines direct injection with supplemental injection into the induction pipe, varies the valve stroke based on load using the Audi valvelift system and utilizes a very elaborate thermal management system to quickly heat the engine after a cold start. Its key performance data: zero to 100 km/h (62.14 mph) in 7.2 seconds, top speed 232 km/h (144.16 mph), combined fuel consumption of 5.6 liters per 100 km (42.00 US mpg), equivalent to 130 g CO2 per km (209.21 g/mile).

The 2.0 TDI with 1,968 cc engine displacement also offers a high-performance thermal management system. Its two balancer shafts were relocated from the oil pan to the crankcase, which clearly improved smooth engine running. Producing 110 kW (150 hp) and 320 Nm (236.02 lb-ft), this diesel delivers tremendous power.

The A3 2.0 TDI sprints from a standstill to 100 km/h (62.14 mph) in 8.6 seconds and reaches a top speed of 216 km/h (134.22 mph). In combined mode, it only requires 4.1 liters per 100 km (57.37 US mpg) – equivalent to CO2 emissions of 106 g per km (170.59 g/mile).

Audi will be extending the engine line-up of the A3 model series step by step. A dynamic S model and other highly efficient and low-emissions versions are planned, including a CNG version for operation with natural gas or Audi e-gas.

A version with the especially efficient 1.6 TDI engine will debut in 2012; it consumes just 3.8 liters diesel/100 km (61.90 US mpg), equivalent to 99 g/CO2 (159.33 g/mile). There are no limitations whatsoever on the range of features for this highly efficient version; this A3 is a fully-fledged Audi as well.

At the A3 market launch, Audi will pair the 1.4 TFSI and 2.0 TDI with a six-speed manual transmission. In the 1.8 TFSI, the seven-speed S tronic is standard; the highly efficient dual-clutch transmission integrates a freewheeling function in conjunction with Audi drive select. All of these transmissions transfer power to the front wheels; the quattro permanent all-wheel drive will follow over the course of the year. Its centerpiece is a hydraulic multi-plate clutch. If necessary, it can variably distribute power between the front and rear wheels – lightning-fast and according to the momentary driving situation.

Chassis

The chassis of the new Audi A3 is well balanced for a sporty mode of driving. The front suspension has a McPherson layout with wishbones, while the multi-link rear suspension absorbs longitudinal and transverse forces independently. The electromechanical power steering system operates with sensitivity, precision and high efficiency; in straight-line driving it does not require any energy input – making an important contribution to the overall efficiency of the new Audi A3. When the sport suspension is ordered, the body is lowered by 15 mm (0.59 inches), and with the S line suspension it is lowered by 25 mm (0.98 inches).

The new Audi A3 rides as standard on 16-inch or 17-inch wheels (alloy on the Ambiente and Ambition). Upon request, Audi can provide wheels up to 18 inches in diameter. The respective tire sizes are 205/55, 225/45 and 225/40; all tires exhibit low rolling resistance without any compromises in dynamic performance.

Behind the large wheels are powerful brakes, and the front discs are internally ventilated. The ESC stabilization control adds the electronic limited slip differential in a weight-neutral way. It improves handling and driving safety at the limits of performance in curves by making minimal brake interventions. The new electromechanical parking brake, adopted from the large car models, is operated by a button on the center console and includes an auto release function and an emergency braking function.

Another attractive option in the new A3 is the Audi drive select vehicle dynamics system (standard in the Ambition); it interfaces to the accelerator pedal, power steering and S tronic. At the push of a button, the driver decides whether these systems should operate in comfort, auto, dynamic, individual or efficiency mode. In the last-named mode, the optional deluxe automatic air conditioning and adaptive cruise control are operated to maximize fuel economy.

Another component integrated in the Audi drive select control system is the optional electromagnetic control of the shock absorbers: Audi magnetic ride. It lets drivers choose between a comfortable mode and a sporty one.

Within these control limits, the system modifies damping forces in just milliseconds, as a function of road conditions and driver preferences. The body is lowered by 15 mm (0.59 inches) here.

Infotainment from NVIDIA

The modular infotainment platform makes its debut in the new A3 – it represents a big step in the direction of future mobile communication electronics. Its layout enables, for the first time, hardware updates with little effort, so that it always reflects the latest developments.

The central computer of the new MMI integrates what is known as the MMX board (MMX: Multi-Media eXtension). This plug-in module includes the fast T 20 graphic processor of the Tegra 2 series from market leader Nvidia. It is used for all voice control, online, media, navigation and telephone functions.

When the system is started, the monitor of the MMI operating system is electrically deployed from the instrument panel. Depending on the version, its screen has either a 5.8-inch or 7-inch diagonal. It has an elegant and high-end look with a high-gloss black housing made of ultra-lightweight magnesium, which is only eleven millimeters (0.43 inches) thick.

Audi is also presenting important new features in the user terminal on the console of the center tunnel. The rocker switches with fixed assignments – hard keys – have been rearranged, and in the top version MMI navigation plus, the large rotary pushbutton is a touchwheel with MMI touch, a technology from Audi luxury cars. Its touch-sensitive surface lets drivers input letters and numbers by finger on top of the touchwheel.

The Audi radio is standard aboard the new Audi A3. The next level up, the MMI radio, adds a user terminal and electrically deployable 5.8-inch monitor. It may be supplemented by the connectivity package which contains the Audi music interface for integrating a mobile player, a Bluetooth interface and navigation preparation. If the A3 customer wishes to purchase an SD card with navigation data at a later time, or if the navigation package is selected with the car, the MMI radio becomes a navigation system.

MMI navigation plus with MMI touch is available as the top version – it is a media center with 60 GB memory capacity, DVD drive and whole-word voice control. The high-resolution 7-inch monitor shows map images in detailed 3D graphics. It interfaces the MMI navigation plus to cell phones and mobile player devices via the integrated Bluetooth interface.

Attractive components round out the infotainment line-up. They include a module for digital radio reception and the Audi phone box that conveniently couples a cell phone to the vehicle antenna. An alternative to the Audi sound system is the optional Bang & Olufsen Sound System; its 705W amplifier drives 12 channels and 14 loudspeakers with 5.1 Sound. The edges of the woofers in the doors are illuminated by LED light conductors.

Audi connect

The Audi connect system bundles all infotainment technologies that let the vehicle owner network with the Internet, infrastructure and other vehicles. The central component is the Bluetooth online car phone as a supplement to MMI navigation plus. It produces the connection to the Internet via a UMTS module. Passengers can conveniently surf and email with up to eight mobile devices via an integrated WLAN hotspot.

For the driver, the Bluetooth online car phone brings customized Internet services into the new Audi A3. They range from navigation with images from Google Earth to the new web radio function Audi music stream, Google POI search by voice control and Google Street View.

An especially appealing service is Audi online traffic information. It makes use of information from the movement profiles of hundreds of thousands of smartphones and navigation units that are traveling on the road. Anonymized and centrally prepared, it offers a very up-to-date picture of the traffic situation, which incorporates country roads and cities as well. The driver sees his or her individual route on the MMI monitor shown in green, yellow, orange or red – depending on traffic load. This service can already be used in a number of European countries, and others will follow.

Driver assistance systems

The Audi A3 is also setting new standards in the premium compact class when it comes to driver assistance systems. The most important of them is Audi adaptive cruise control, which maintains a desired distance to the car ahead by accelerating and braking – up to a vehicle speed of 150 km/h (93.21 mph). If the A3 driver orders the assistance package, which combines several systems, the control range is extended up to 200 km/h (124.27 mph).

In case of an impending collision, the ACC system warns the driver according to a progressively staged strategy. If necessary, it can initiate partial braking to reduce the car’s speed at impact.

If a collision does occur, an innovative system is activated in the A3. It prevents uncontrolled secondary car travel after the initial collision and simultaneously activates the interior lighting. If the Bluetooth car phone is on board, a call is also made to emergency services. Activated at speeds under 30 km/h (18.64 mph), the system applies full braking in an emergency situation; in many cases this can prevent secondary collisions with pedestrians.

Other systems complete the line-up. Audi side assist, which monitors traffic at the back of the car with radar, simplifies lane changes for the driver, while Audi active lane assist helps the driver to stay in the lane by making a slight steering correction if necessary. The system’s video camera is also used by the traffic sign detection system; it shows speed limits and other traffic signs on a monitor in conjunction with MMI navigation plus. The rest recommendation system detects when the driver is fatigued, and warns the driver accordingly.

Audi offers a number of systems for convenient parking, and park assist is at the top. It takes over steering duties for the driver in perpendicular and parallel parking. If necessary, it can make multiple forward and reverse maneuvers. Its 12 ultrasonic sensors detect obstacles around the car. New in the A3: park assist can be supplemented by a reversing camera.

Another high-end option is the Audi pre sense basic safety system. When it detects an unstable driving state via the sensors of the ESP stabilization system, it tensions the front seat belts with electric motors and closes the sunroof and side windows.

A3 success story

The A3 has a 16-year history of success at Audi. The first generation of the model series, which debuted in 1996 as a three-door model, created an entirely new market segment – the premium compact class. The A3 sets new standards with its sporty character, high-quality workmanship and optional quattro all-wheel drive. In 1999, the five-door model and the sporty S3 rounded out the line-up. Audi sold about 880,000 units of this first model series.

The second generation, which followed in 2003, was even more successful and increased total sales to about 1.8 million units. In the competition that now developed, the A3 impressively dominated the premium compact class. The brand with the four rings broadly diversified its model line-up with the versatile Sportback (2004), the dynamic S3 (2006), the emotional Cabriolet (2008) and the high-performance sports model, the RS 3 (2011). Over its production life to date, the A3 model series has represented over 20 percent of total Audi sales, establishing itself as a steadfast pillar of the brand’s success.

The equipment, data, and prices specified refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.

- Audi AG

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Audi is set to unveil an attractive technical study – the A3 e-tron concept – in Shanghai. The four-seat notchback sedan integrates the full breadth of the brand’s technological expertise – from the enhanced MMI operating system, to the high-end infotainment system, to the drivetrain. And with its two power-plants and lithium-ion batteries that store enough energy to propel the car on electric power alone for up to 54 km (34 miles), the plug-in hybrid also delivers high fuel efficiency.

Design and body

The Audi A3 e-tron concept is a four-seat notchback sedan. It measures 4.44 meters (14.57 ft) long and 1.84 meters (6.04 ft) wide, but just 1.39 meters (4.56 ft) high – proportions that underscore its dynamic character.

The design represents the typical Audi language of sporty elegance. The single-frame grille is integrated into the front end, giving it a sculptured look. Its frame is made of carbon fiber-reinforced polymer (CFRP), and the transversely mounted, three-dimensional aluminum louvers create a visual effect that emphasizes the show-car’s width. The headlights merge with the beveled upper corners of the single-frame, forming a transition that marks the starting point of the prominently accentuated lines of the engine hood.

The headlights represent a new stage of evolution in LED technology, a groundbreaking innovation from Audi. They become broader as they extend outward, and a line underneath makes them seem to float on air. Above the front spoiler is a full-length air intake, also made of CFRP, framed by a metal clasp. The spoiler features a splitter that increases the downforce on the front wheels.

When viewed from the side, too, the A3 e-tron concept is recognizable at first sight as an Audi – with its harmonious proportions, taut, muscular surfaces and a low roof dome with fluid lines flowing into a flat, coupe-like C-pillar. The shoulder area transitions elegantly into the tailgate. Characteristic of Audi design, the greenhouse accounts for one-third of the height, while the sheet metal makes up the remaining two-thirds.

Powerfully flared fenders hint at the power of the engine. Two prominently elaborated lines accentuate the flank: the undercut tornado line beneath the window edge and the dynamic line above the sills. The exterior mirrors, made of aluminum and CFRP, are perched atop the window-channel strips. The door handles with their brushed-aluminum clasps are recessed flush with the door. When the driver touches them, they power-extend.

The intelligent interplay between surfaces and lines also defines the tail end of the A3 e-tron concept. The broad, flat tail lights are sculptured and culminate in a point on the inside, and the tailgate bears an elegant spoiler edge. The rear apron includes a diffuser insert of CFRP and metal, which in turn surrounds the two large tailpipes for the exhaust system.

Ultra-modern components, design methods and joining techniques keep the body weight low. One example of this are the custom tailored blanks (panels of various thicknesses) in the floor area. The doors, engine hood and tailgate are made of aluminum. With its high levels of rigidity, the body provides the basis for the sedan’s precise handling, excellent vibrational comfort and low weight – the Audi A3 e-tron concept tips the scales at just 1,720 kilograms (3,792 lb).

Interior

The interior of the show-car is generously proportioned. The long wheelbase measuring 2.63 meters (8.63 ft) – a best-in-class figure in the premium compact segment – gives rear passengers on the two individual seats a pleasing amount of knee room. The front sport seats with prominent side bolsters are slim and elegant.

The cockpit, too, gives an impression of lightness and airiness. The horizontal lines emphasize its design. The instrument panel draws the driver in – typical of Audi. Defined in three dimensions, the large trim strip is made of solid aluminum and includes control functions. The high-quality sound system in the doors and on the rear shelf has aluminum trim panels. When the audio system is turned on, they extend a few millimeters, thus orchestrating a visual accompaniment to the system’s excellent sound.

On the center console, four large, round air vents echoing a jet’s design catch the eye. The air flow is adjusted by pulling and pushing on the center axis of the vents. The control knobs for the automatic air conditioning system are located in the lower section of the center console on a boldly protruding, dedicated control panel. Visually, they are reminiscent of airplane turbines.

Behind the compact, flat-bottomed, three-spoke multifunction steering wheel is an innovative display concept that renders the individual driving states of the hybrid drive clear-cut and tangible. The tachometer on the instrument cluster has been replaced by a “power meter,” with a needle that indicates the total system output on a scale of 0 to 100 percent. A second scale is divided into colored segments. At a glance, the green and orange segments clearly indicate where the A3 e-tron concept is drawing its power – from the electric motor, the combustion engine, or a combination of both. An additional instrument displays the charge level of the battery.

In between the two large round dials is the large, eight-inch display for the driver information system. This display and the large monitor of the MMI system show the operating states and power flows in the hybrid system in elegant graphics with a three-dimensional effect.

The MMI monitor also displays differentiated consumption and recuperation statistics in easily understandable bar graphs.

The control panel for the MMI multimedia system is located on the center tunnel console. The interface on its large rotary pushbutton features another novelty – the “MMI touch” touchpad. This new solution, which makes the already exemplary operation even more intuitive, will soon be introduced in series production at Audi. The ultra-thin MMI monitor power-extends upwards out of the instrument panel, another feature taken from the full-size car class.

In terms of infotainment, the Audi A3 e-tron concept shows why the brand is leading the competition. A UMTS model provides full access to the Internet, allowing the car to retrieve convenient services from Google. Thanks to the WLAN hotspot, passengers can surf and send e-mail to their hearts’ content. Holders for iPads are installed on the back of the front seat backrests.

A classic notchback sedan, the Audi A3 e-tron concept boasts a large luggage compartment with a volume of 410 liters (14.48 cubic ft) and a low loading lip.

Drivetrain

Designed as a plug-in hybrid, the A3 e-tron concept is propelled by two power units – a 155-kW (211-hp) 1.4 TFSI four-cylinder engine with turbocharging and gasoline direct injection and an electric motor with an output of 20 kW (27 hp). The system provides a combined output of 175 kW (238 hp). Working together, the gasoline engine and electric motor accelerate the notchback to 100 km/h (62.14 mph) in 6.8 seconds, then on to 231 km/h (143.54 mph). A regulated oil pump, the intelligent Audi thermal management system, a start-stop system and an energy recovery system – technologies from the brand’s modular efficiency platform – all contribute to this high efficiency.

At the heart of the A3 e-tron concept are the lithium-ion batteries located behind the rear seats. With a charge capacity of 12 kWh, they give the notchback a range of up to 54 km (34 miles) on electric power alone.

The batteries are charged by the standard energy recovery system when the car is in motion or directly from a household power socket when it is parked. This means that in most cases, the car is entirely emission-free in city driving.

A compact seven-speed S tronic serves as the transmission for the compact plug-in hybrid. It comprises two transmission structures, which are operated by two clutches. Gears are alternately shifted by the two clutches – at lightning speed, comfortably, and without any perceptible interruption of traction.

The driver can operate the seven-speed S tronic in one automatic mode and one manual mode, using the paddles on the steering wheel to shift gears manually. Elegant touch control buttons alongside the hand-rest on the center tunnel console are used to select drive positions R, N and D. These are backlit in red when it gets dark. Drive position P is automatically engaged when the electric parking brake is applied. The launch control system manages the sprint from a dead stop, furnishing explosive turbo power with minimal tire slip.

Chassis

Derived from the current RS 3 Sportback, the Audi A3 e-tron concept’s chassis is fully capable of handling the power from the drive system at all times. The four-seater masters any type of curve with speed, stability and composure. Its self-steering response remains essentially neutral all the way up to the lofty handling limits.
The front suspension – a MacPherson construction with a separate axle support – has a track measuring a full 1,572 millimeters (61.89 in). The rack-and-pinion steering is extremely efficient because its electromechanical drive system requires no energy when driving straight ahead.

The four-link rear suspension with its 1,542-millimeter (60.71-in) track is likewise fixed to a subframe. Its control arms made of high-strength steel enable the suspension to absorb longitudinal and lateral forces separately. The shock absorbers and coil springs are mounted separately from each other.

The Audi drive select dynamic handling system gives the driver five modes from which to select the characteristics of the engine, power steering and seven-speed S tronic. The modes are comfort, auto, dynamic, individual and efficiency, the last of which is designed for maximum economy.

The imposing light-alloy rims measure 20 inches in diameter. The tire format is 245/30 at the front and rear. The front brake disks are gripped by four-piston calipers. The ESP stabilization system has a Sport mode and can be completely deactivated. The parking brake is actuated electromechanically.

The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.

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Audi is set to unveil an attractive technical study – the A3 concept – at the Geneva Motor Show. The four-seat notchback sedan integrates the full breadth of the brand’s technological expertise – from the improved MMI operating system, to the high-tech infotainment system, to the drivetrain. A five-cylinder turbo developing 300 kW (408 hp), a seven-speed S tronic and quattro permanent all-wheel drive ensure thrilling dynamics along with high fuel efficiency.

Design and body

The Audi A3 concept is a four-seat notchback sedan. It measures 4.44 meters (14.57 ft) long and 1.84 meters (6.04 ft) wide, but just 1.39 meters (4.56 ft) high – proportions that underscore its dynamic character.

The design represents the typical Audi language of sporty elegance. The single-frame grille is integrated into the front end, giving it a sculptured look. Its frame is made of carbon-fiber-reinforced plastic (CFRP), and the transversely mounted, three-dimensional aluminum louvers create a visual effect that emphasizes the showcar’s width. The headlights merge with the beveled upper corners of the single-frame, forming a transition that marks the starting point of the prominently accentuated lines of the engine hood.

The headlights represent a new stage of evolution in LED technology, a groundbreaking innovation from Audi. They become broader as they extend outward, and a line underneath them makes them seem to float on air. Above the front spoiler is a full-length air intake, also made of CFRP, framed by a metal clasp. The spoiler features a splitter that raises the downforce on the front wheels.

When viewed from the side, too, the A3 concept is recognizable at first sight as an Audi. Harmonious proportions, taut, muscular surfaces and a low roof dome with fluid lines flowing into a flat, coupé-like C-pillar. The shoulder area transitions elegantly into the tailgate. Characteristic of Audi design, the greenhouse accounts for one-third of the height, while the sheet metal makes up the remaining two-thirds.

Powerfully flared fenders hint at the power of the engine. Two prominently elaborated lines accentuate the flank: the undercut tornado line beneath the window edge and the dynamic line above the sills. The outside mirrors, made of aluminum and CFRP, are perched on the top shoulder, just like on a sports car. The door handles with their brushed-aluminum clasps are recessed flush with the door. When the driver touches them, they power-extend.

The intelligent interplay between surfaces and lines also defines the tail end of the A3 concept. The broad, flat tail lights are sculptured and culminate in a point on the inside, and the tailgate bears an elegant spoiler edge. The rear apron includes a diffuser insert of CFRP and metal, which in turn surrounds the two large tailpipes for the exhaust system.

Ultra-modern components, design methods and joining techniques keep the body weight low. One example of this are the custom tailored blanks (panels of various thicknesses) in the floor area. The doors, engine hood and tailgate are made of aluminum. The extra stiff body provides the basis for the sedan’s precise handling, excellent vibrational comfort and low weight – the Audi A3 concept tips the scales at just 1,540 kilograms (3,395.12 lb).

Interior

The interior of the showcar is generously proportioned. The long wheelbase measuring 2.63 meters (8.63 ft) – a best-in-class figure in the premium compact segment – gives rear passengers on the two individual seats a pleasing amount of knee room. The front sport seats with prominent side bolsters are slim and elegant.

The cockpit also gives an impression of lightness and airiness. The horizontal lines emphasize its design. The instrument panel draws the driver in – typical of Audi. Defined in three dimensions, the large trim strip is made of solid aluminum and includes control functions. The high-quality sound system in the doors and on the rear shelf has aluminum trim panels. When the audio system is turned on, they extend a few millimeters, thus orchestrating a visual accompaniment to the system’s excellent sound.

On the center console four large, round air vents echoing a jet’s design catch the eye. The air flow is adjusted by pulling and pushing on the center axis of the vents. The control knobs for the automatic air conditioning system are located in the lower section of the center console on a boldly protruding dedicated control panel. Visually, they are reminiscent of airplane turbines.

Located behind the compact, flat-bottomed, three-spoke multifunction steering wheel are two analog dial instruments with black dials and red needles, complemented by additional kidney-shaped displays. Engraved rims made of brushed aluminum underscore their classy look. In between the two large round dials is the large, eight-inch display for the driver information system. The display is user-programmable – the driver can select the content to be displayed from an extensive menu.

The control panel for the MMI multimedia system is located on the center tunnel console. The surface of its large rotary pushbutton includes the touch pad, MMI touch. This new solution, which makes the already exemplary operation even more intuitive, will soon be introduced in series production at Audi. The ultra-thin MMI monitor power-extends out of the instrument panel, another feature taken from the full-size car class.

In terms of infotainment, the Audi A3 concept shows why the brand is leading the competition. A UMTS model provides full access to the Internet, allowing the car to retrieve convenient services from Google. Thanks to the WLAN hotspot, passengers can surf and send e-mail to their hearts’ content. Holders for iPads are installed on the back of the front seat backrests.

A classic notchback sedan, the Audi A3 concept boasts a large luggage compartment with a volume of 410 liters (14.48 cubic ft) and a low loading lip.

Drivetrain

The A3 concept has a five-cylinder engine under the hood that combines the Audi technologies of turbocharging and FSI gasoline direction injection. It develops a hefty 300 kW (408 hp) from a displacement of 2.5 liters. Its peak torque of 500 Nm (368.78 lb-ft) is available over a broad rev range between 1,600 and 5,300 rpm.

The five-cylinder powerplant unleashes a rousing soundscape – its typical sound pattern calls to mind the Audi sound of the 1980s and the huge motorsport successes of that period. Its performance is a complete homage to tradition: The A3 concept catapults from a dead stop to 100 km/h (62.14 mph) in 4.1 seconds, and its electronically governed top speed of 250 km/h (155.34 mph) is merely the official figure.

In terms of fuel consumption, the four-seater requires just 9.1 liters of fuel per 100 km (25.85 US mpg) and emits 212 grams CO2 per km (341.18 g/mile). A regulated oil pump, the intelligent Audi thermo-management system and a energy recovery system – technologies from the brand’s modular efficiency platform – all contribute to this high efficiency.

A compact seven-speed S tronic serves as the transmission. It comprises two transmission structures, which are operated by two clutches. Gears are alternately shifted by the two clutches – at lightning speed, comfortably, and without any perceptible interruption of traction.

The driver can operate the seven-speed S tronic in one automatic mode and one manual mode, using the paddles on the steering wheel to shift gears manually. Elegant touch control buttons on the center tunnel console are used to select drive positions R, N and D. These are backlit in red when it gets dark. Drive position P is automatically engaged when the electric parking brake is applied. The launch control system manages the sprint from a dead stop, furnishing explosive turbo power with minimal tire slip.

Power is effortlessly transmitted to the road via quattro permanent all-wheel drive. Its centerpiece is an electronically controlled multi-plate clutch at the end of the propeller shaft. When slip occurs at one of the axles, the clutch redirects the majority of the torque input to the wheels with the better grip.

Chassis

Derived from the current RS 3 Sportback, the chassis of the Audi A3 concept is fully capable of handling the power from the drive system at all times. The four-seater masters any type of curve with speed, stability and composure, turning spontaneously into corners going in and providing superior traction going out. Its self-steering response remains essentially neutral all the way up to the lofty handling limits.

The front suspension – a McPherson construction with a separate axle support – has a track measuring a full 1,572 millimeters (61.89 in). To a large extent, its components are made of aluminum. The rack-and-pinion steering is extremely efficient because its electromechanical drive system requires no energy when driving straight ahead.

The four-link rear suspension with its 1,542-millimeter (60.71-in) track is likewise fixed to a subframe. Its control arms made of high-strength steel enable the suspension to absorb longitudinal and lateral forces separately. The shock absorbers and coil springs are mounted separately from each other.

The Audi drive select dynamic handling system gives the driver five modes from which to select the engine characteristics, power steering and the seven-speed S tronic. The modes are comfort, auto, dynamic, individual and efficiency, the last of which is designed for maximum economy.

The imposing light-alloy rims measure 20 inches in diameter. In five twin-spoke design, they are made of CFRP and aluminum. The slender, recessed rims optimize ventilation. The tire format is 245/30 at the front and rear. The front brake disks are gripped by four-piston calipers. The ESP stabilization system has a Sport mode and can be completely deactivated. The parking brake is actuated electromechanically.

The equipment and data specified in this document refer to the model range offered in Germany. Subject to change without notice; errors and omissions excepted.

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Audi will present an attractive technological concept car based on the coming generation of the Audi A3 at the 81st International Geneva Motor Show in early March 2011. The four-seater notchback sedan offers a glimpse of the future expansion of the A3 family.

The sporty yet elegant design of the Audi A3 concept integrates the single-frame grille with its tapered upper corners and headlights with the latest generation of LED technology. The low, flowing roof dome and a coupe-like, low C pillar are among the defining features of the side view.

The Audi A3 concept is 4.44 meters (14.57 feet) long, 1.84 meters (6.04 feet) wide and just 1.39 meters (4.56 feet) high. These proportions emphasize the dynamism of the car’s appearance, as do the performance figures for the drive unit. The five-cylinder turbocharged engine has a power output of 300 kW (408 hp). It distributes its power to all four wheels through a seven-speed S tronic transmission and permanent all-wheel drive.

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