2012 Audi S8. The new 4.0 TFSI in the Audi S8 generates no less than 382 kW (520 hp) and delivers a constant 650 Nm (479.42 lb-ft) of torque to the crankshaft between 1,700 and 5,500 rpm. The result is outstanding performance: The sprint from zero to 100 km/h (62.14 mph) takes just 4.2 seconds, and top speed is electronically capped at 250 km/h (155.34 mph).
This makes the fuel consumption of the sonorous and smooth twin-turbo V8 all the more amazing: It averages just 10.2 liters per 100 km (23.06 US mpg), much less than its competitors. The free-breathing, 5.2-liter V10 in the previous model consumed an average of 13.2 liters per 100 km (17.82 US mpg). Fuel consumption decreased by nearly 23 percent despite a 51 kW (70 hp) increase in output.
Behind the top value for the new Audi S8 are the combined technologies of the Audi modular efficiency platform, including the recuperation and start-stop systems. The newly developed “cylinder on demand” technology plays a particularly large role. Under part load, it deactivates four of the eight cylinders for an efficiency gain that is particularly pronounced at moderate highway speeds. A package of acoustic measures including the Active Noise Cancellation system suppresses possible intrusive noise and vibrations.
The eight-speed tiptronic in the Audi S8 also unites sportiness and efficiency. It uses tall gears at low revs whenever possible, but downshifts quickly and comfortably when requested by the driver. The tiptronic delivers the power to a quattro drivetrain combining a self-locking center differential with the sport differential at the rear axle. During dynamic driving, the lion’s share of the power flows to the outside wheel to literally push the large sedan into the corner.
The new Audi S8 also pulls out all the stops when it comes to the chassis. One of its features is a specially tuned adaptive air suspension with variable damping, which can vary the ride height of the body between three levels and thus ensures a wide-ranging driving experience. It harmonizes perfectly with the dynamic steering, also standard, that adapts its steering ratio and boost to the vehicle’s speed.
The Audi drive select dynamics system encompasses these two systems as well as engine management, the eight-speed tiptronic and the sport differential. The driver can determine the function of these components by choosing between the five modes comfort, auto, dynamic, individual and efficiency.
The standard, S-specific wheels measure 9 J x 20 and are shod with 265/40-series tires. Audi offers five additional wheels as options, four of which have a 21-inch diagonal. The four internally ventilated disc brakes measure 400 millimeters (15.75 in) in diameter up front and 365 millimeters (14.37 in) at the rear. The matt black calipers up front bear S8 logos.
Each of the optional carbon fiber-ceramic discs saves over five kilograms (11 lb) of weight. Their calipers are anthracite gray. The ESP stabilization program includes a sport mode, in which engine output is determined solely by the position of the pedals.
A decisive advantage of the Audi S8 is the comparatively low weight of 1,975 kilograms (4,354.13 lb). The luxury sedan’s ASF (Audi Space Frame) body is made almost entirely of aluminum. Only the B-pillars are made of ultra high-strength steel. The body weighs just 231 kilograms (509.27 lb); a conventional steel construction would be around 100 kilograms (220.46 lb) heavier. The Audi ultra-lightweight construction allows weight to be reduced in other areas as well, such as the chassis.
Fine design details signal the special position that the 5.15 meter-long (16.90 ft) S8 occupies in the Audi range. The single-frame grille is platinum gray and its eight double bars are covered in chrome. An aluminum-look blade makes the bumper appear sharper, and there are high-gloss black slats and aluminum-look ribs in the side air intakes.
S8 or V8 T badges can be found in the front, on the back and on the sides. The color range includes 13 shades, two of which – Daytona Gray and Prism Silver – are reserved for the S8.
For the interior, the multi-way, power-adjustable comfort sport seats have been designed exclusively for the new Audi S8. They are optionally available with exclusive seat upholstery in quilted lunar silver. The stitching and piping are in contrasting steel gray, while the upper inlays on the instrument panel and tiptronic selector lever present the material Carbon Atlas.
The leather multifunction sport steering wheel has color-contrasting stitching and an S8 emblem, which can also be found on the instruments. Typical of the Audi S models, these have gray dials with white needles – a design which is repeated in the classic analogue clock. The illuminated door sill trims with the S8 logo are a further eye-catcher. The display of the driver information system and the MMI monitor greet the driver with special S8 screens. The shift paddles and pedals are in an aluminum-look finish; a red ring frames the start button.
The Audi S8 offers a wide selection of interior colors, inlays and seat upholstery. These include particularly soft Valcona leather and seats with ventilation and massage functions. The leather package, a DVD changer, the convenience key with sensor-controlled lock for the trunk and the ambient lighting package round out the list of standard interior equipment. The Audi S8 is also equipped with the innovative LED headlights and double glazing.
