As its name suggests, the Prologue Concept aims at marking the beginning of a new aesthetic approach for Audi, focused on expressing advanced technology and an emotional appeal.
This is explained by the new Head of Design Marc Lichte: “Audi stands for sportiness, lightweight design and the quattro permanent all-wheel drive. In the Audi prologue, we are expressing this know-how in a new form – we have put the sportiest car in the luxury segment on wheels. Our team took new approaches in both exterior and interior design.”
The two-door coupe has a flowing silhouette and a surface treatment that marks a significant, albeit not revolutionary, development of Audi’s current DNA, after many production and concept models that were strongly based on the well established look and feel.
The car’s proportions are defined by very generous dimensions – it is 5.10 meters long, 1.95 meters wide and 1.39 meters tall, with a 2.94 meters wheelbase.
This imponent size is partly disguised and reproportioned by the huge 22-inch wheels, fitted with 285/30 tires, and the relatively short overhangs.
The large wheels, set in widely flared wheel arches, along with the flared shoulders, inspired by the blisters of the original Audi Ur-quattro of the 1980s, contribute to underline and “visualize” the quattro transmission, one of Audi main technological statements.
The front end is characterized by sharp, angular lines and the trademark Singleframe grille, and appears to be a direct evolution of the latest concept cars.
The rear section, on the other end, features a softer surface treatment and is angled in the driving direction, taking inspiration from the side and rear views of a luxury yacht.
Among the main design elements are the edge of the trunk lid, executed as a spoiler, the glossy black aluminum diffuser and the inward concave curve of the rear window between the C-pillars.
The tail lamps are integrated into a single horizontal fascia and feature LED rear lights with 3D glass – while the brake light is located deep inside the lighting unit.
The interior is characterized by tight lines that reflect the exterior graphic themes, and advanced technologies such as the Audi virtual cockpit, featuring high-resolution displays and three mirrors thet generate an evocative “virtual stage” on three levels.
Commenting on Lichte’s approach, Prof. Dr. Ulrich Hackenberg, Board Member for Development, who brought him to Ingolstadt in 2014, said “When [Marc Lichte] moved to Audi, Marc Lichte launched a design offensive.”
“His clear philosophy and precise understanding of Audi DNA let him develop a design strategy that is opening up entirely new perspectives for us. It is progressive and highly emotional; it expresses the technological competence and quality claim of the brand perfectly. The Audi prologue is its first proponent – it is a ‘signature car’ for Audi.”
The Audi Prologue Concept is powered by a revised version of the 4.0 TFSI biturbo engine, which delivers 605 hp and 700 Nm.
Below we report the official details from Audi’s press release.
From the official Press Release
The Audi prologue is somewhat shorter and flatter than today’s production A8* with a length of 5.10 meters (16.7 ft), wheelbase of 2.94 meters (9.6 ft), width of 1.95 meters (6.4 ft) and height of 1.39 meters (4.6 ft).
A dominant feature at its low front end is a Singleframe displaying the four rings that is integrated into the automobile architecture. The large radiator grille has been widened much more, and it is positioned lower than on today’s production models. Its strong horizontal effect expresses an image of powerful dynamics. The cross bars have a finely structured diamond pattern, and their ends are split.
The headlights – shaped like wide, flat wedges – are located with their tips above the Singleframe. They present high-resolution Matrix laser technology: an innovation from Audi which opens up new approaches to headlight design and enables completely new functionalities.
The pupils of the headlights are formed by a projection lens with a laser light source – they generate a matrix that illuminates the entire street in high resolution. Hovering beneath this element are five plastic lenses that are supplied with light via a glass fiber bundle, which are mounted to a lightweight structure and further extend the high-beam light. The new laser technology lets lighting designers create an extremely lightweight, compact and elegant eye-shaped form.
Audi quattro DNA visualized
Also new is the sculptural form of the air intakes under the headlights – the distinctive air intakes have diamond pattern screens in their interiors. A dynamically contoured blade, which is clearly separated from the bumper by a gap, elicits associations to motor sport. Mounted to it are two additional spoilers in glossy black, which give the show car an even stronger and wider stance on the road.
In side profile, its flowing silhouette expresses the character of forward motion in the Audi prologue. Balanced proportions put equal emphasis on the front and rear wheels – a clear reference to the quattro DNA of Audi. The powerful 22-inch wheels are set in widely flared wheel arches. They are fitted with tires of size 285/30. Each wheel’s ten intertwining Y spokes project a filigreed, three-dimensional and powerful image.
Edges above the wheel arches refer back to the Ur-quattro
A characteristic feature of the Audi prologue are the flared shoulders above the wheels, front and rear. Like the blisters of the original Audi Ur-quattro of the 1980s, they visualize the quattro drive – but they are no longer just added on, rather they are worked into the flow of the base architecture. In a side view, the shoulders form two gentle arcs above the wheels, which break up the somewhat lower shoulder line between the wheels.
The fenders, doors and rear side panels show curved muscular surfaces. The lower door area has a low concave shape that runs upwards to the rear – a motif that links to the design theme of air inlets. The side sills are drawn inward; glossy black aprons form a continuation of the front spoiler. All lines and surfaces on the Audi prologue show car are logically interrelated, which is typical Audi.
The door mirrors are small aluminum sculptures: The mirror housings in the form of a shell create a flowing transition to the window slot trim. They also integrate the open-door sensor surfaces. The doors have no handles, and they are opened electromechanically when the illuminated sensor surfaces are touched.
Vast areas of the stiff multimaterial body of the Audi prologue consist of aluminum and ultra-high-strength steel. The windows are framed by matt and polished aluminum trim strips.
At the end of the low roof dome, the window framing transitions into a solid surface of aluminum; its workmanship illustrates the handcraft-like manufacturing quality of Audi, and it enables lowering of the windows despite the C-pillars. This area integrates the fuel tank lid on the right side of the show car. It has an electric opening mechanism and can be lowered completely into the C-pillar by pressing a button in the interior. For enhanced convenience in refueling, the tank closure does not have a cap. The paint is a light diva gray, a new type of pearl effect paint, which has a warm and elegant appearance.
Rear section drives the whole car forward
The rear section of the Audi prologue also breaks with conventions. It is angled in the driving direction and is reminiscent of the side and rear views of a luxurious yacht; the sickle-shaped seam between the side panel and the bumper emphasizes this dynamism.
The edge of the trunk lid, which is executed as a discreet spoiler, picks up on the blister line coming from the side panel. Between the C-pillars, the rear window has a concave inward curve – it closes off the passenger compartment while enabling convenient cargo loading with the separate trunk lid. The Audi prologue unites the positive aspects of a saloon with the aesthetic highlights of a coupe.
The unconventional design of the LED rear lights with their 3D glass gives the tail lights all of the benefits of the new design: the new, long tail lights run across the entire width of the car. At its termination point, the light illuminates the frame of the embossed 3D form.
Fine lines in the 3D glass appear to hover in the middle of the light. The brake light is located deep inside the lighting unit. When braking, the bottom of the 3D imprint is also illuminated, which makes the light appear to move towards the observer. This configuration on different levels, and the alternation between 2D and 3D lighting functions lets the observer experience the tail lights in an entirely new dynamic way.
Beneath the bumper, there is a diffuser made of glossy black aluminum; like the front blade, it extends over the full width of the car as a separate, significantly recessed element. The diffuser integrates two trapezoid-shaped inlets which visually coordinate with the embossed tail lights and house the exhaust system tailpipes.
Interior and operating concept
The spacious interior of the Audi prologue is like a luxurious lounge. It is based on Gran Turismo design, and it enables both very sporty driving and relaxed touring. The interface visually adapts to the specific driving style. The interior marks the beginning of a new design era at Audi, in which the architecture merges with the operating concept to form one unit. The surfaces for displays and controls are innovatively integrated into the instrument panel and console of the center tunnel, and the infotainment system brings driver and passenger into dialog with one another.
When entering the vehicle, the four-seat coupe receives its passengers with polite hospitality. The “butler” – an innovative intelligent software program – identifies them based on their smartphones and adjusts the seats and climate control system according to their preferences. The system also makes recommendations for music and route planning that are oriented towards the owner’s preferences. The Easy Slot system, an advanced development of the Audi phone box, is located under lids in the center console. A special mechanism networks the smartphones of passengers to the vehicle infotainment system and charges them.
Open interior space
Tautly stretched lines and lean geometric forms give the interior a light and clear ambience. The instrument panel has a light and elegant appearance with its strictly horizontal layout that is not interrupted anywhere, and it emphasizes the generous interior width. It lowers itself towards the interior on two levels. The upper level is positioned, like a roof, above the Audi virtual cockpit future – an advanced development of the Audi virtual cockpit – and above the line of air vents. It is part of the wrap-around – a large arc that encircles the driver and front passenger.
A second wrap-around joins the front and rear sections of the interior and is already quite visible from the exterior. The center console with its pass-through also appears to hover, as do the front seats, whose rails are mounted on the tunnel and side sills. The head restraints of the two rear bucket seats are lowered when not in use; they automatically extend when a passenger enters the rear seating area with the electric easy entry function.
When the sound system is activated, a new type of sound spoiler extends from the rear shelf; it optimally produces a premium sound in the car that is typical of Audi.
A radically new type of display and operating concept is embedded in the elegant architecture. Across its full width, the front of the instrument panel is designed to be a display surface which integrates three touch displays. The driver-oriented display to the left of the steering wheel is used to control functions for lighting and assistance systems. The driver-oriented operating unit to the right contains media controls. The front passenger faces a widescreen display that is integrated into the full surface of the instrument panel; it is used to individually and conveniently control entertainment features.
The new type of front passenger display enables digital interaction between the driver and front passenger for the first time. A wiping movement by the passenger is all it takes to send pre-configured routes to the driver’s display and input them into the Audi virtual cockpit future.
On the console of the center tunnel, there is a fourth flexible touch display that is ergonomically adapted to the driver; it is used for climate control, handwriting input and other vehicle settings. This display consists primarily of an extremely thin, bendable OLED film (OLED: organic light emitting diodes), and it displays extremely sharp images that are rich in contrast. When not in use, the OLED display is integrated flush to the center console and is nearly invisible. When the car is started, the flexible display stands up. The fact that it bends ensures a constant distance to the hand which makes for better ergonomics. When operating the display, the wrist rests on the low-positioned gear selector lever of the eight-speed tiptronic.
Designers have also redesigned the shift-by-wire lever. It is now integrated seamlessly into the center console. Cupholders and smartphone slots are installed under lids on the center console, to the left and right of the console support element.
Audi virtual cockpit
The Audi virtual cockpit future offers a glimpse into the future of the digital cockpit: High-resolution displays and three mirrors generate a virtual stage on three levels – a fascinating view with visual depth. In the navigation view, the first level presents information that is important for driving; levels two and three generate the depth effect in the cockpit. Structuring the information on different levels makes it better organized and easier for the driver to comprehend. The content and colors of the Audi virtual cockpit future change as a function of driving style – in sporty driving, the display switches over to Sport mode with special presentation of the relevant information such as engine rpm, temperatures and charge pressure.
Inside the Audi prologue, every detail clearly illustrates its exclusive character.
A finely crafted perforated panel covers the air vents. If the driver sets the blower to a higher stage, the panel retracts downwards.
White LED light conductors trace the distinctive lines of the interior, starting at the doors. A large aluminum brace forms the steering wheel spokes; it harmonizes with the bars on the displays and the door pull handles. All aluminum accents show perfection in craftsmanship: Their surfaces have matt finishes, and the edges are polished – a fine interplay of gloss levels.
For Audi designers from the Color & Trim area, natural materials are the new luxury; all of the materials in the show car fascinate with their authenticity. The surfaces of the seats and seat backs, the dashboard, the console on the center tunnel and the armrests are covered in light-colored “passion” leather – a new soft grade of leather that emphasizes the natural characteristics of the animal hide.
Soft nubuck leather, also in a light color, covers the backs of the seats and the side panel trim of the rear seating area. On the instrument panel, the gray-brown trim of the lower section provides another strong accent. The wrap-around is upholstered in dark “passion” leather; here, and in many other areas, aluminum trim strips contrast with panels of open-grained silver-gray elm wood veneer.
The technology of the Audi prologue is as sophisticated as its interior is emotion- evoking. The 4.0 TFSI, which is installed in the engine compartment like a technical masterpiece, produces 445 kW (605 hp) and 700 Nm (516.3 lb-ft) of torque; in overboost mode, which the driver can call up for around 15 seconds, a boosted torque of 750 Nm (553.2 lb-ft) is available. The sonorous biturbo V8 accelerates the two-door coupe, which has an unladen weight of 1,980 kilograms (4,365.2 lb) from 0 to 100 km/h (62.1 mph) in 3.7 seconds.
The show car’s combined fuel consumption is just 8.6 liters per 100 kilometers (27.4 US mpg), which equates to CO2 emissions of 199 grams per kilometer (320.3 g/mile).
One contributor to this high efficiency is a new 48-volt subsystem of the vehicle electrical system – this is a technology that will soon be introduced to production cars at Audi.
The 48-volt system is supplied by a powerful belt starter generator, which turns the powertrain into a mild hybrid and has an energy recovery output of up to 12 kW during braking. An eight-speed tiptronic directs engine power to the quattro permanent all-wheel drive, which works closely with torque vectoring.
New five-link wheel suspensions
In the chassis, the adaptive air suspension sport – an air suspension with controlled damping – offers a large adjustment range between smooth rolling and very tight handling; it also varies the show car’s ground clearance over several levels. The front and rear suspensions are engineered as lightweight five-link designs. The large carbon-fiber ceramic brake discs decelerate the show car powerfully. On the 20-inch front brakes, they are gripped by six-piston fixed calipers.
A technology highlight of the Audi prologue is its dynamic all-wheel steering – it boosts driving dynamics and ride comfort by an intelligent combination of dynamic and all-wheel steering. The driver therefore can enjoy an automobile with extremely good handling. In the lower speed range, this is made evident by better agility and turning ability. In the higher speed range, developers improved the car’s responsiveness which leads to greater vehicle stability.
Overall, dynamic all-wheel steering – with rear wheel steering angles of up to five degrees – makes it easy to maneuver when parking and offers precise and sporty steering on country roads and impressively comfortable steering on freeways.