The Audi S8 is now the frontrunner of the Audi S lineup. The launch for the S8 is scheduled to take place in the spring of 2012. This large, powerful luxury sedan is powered by the new 4.0 TFSI, which develops 382 kW (520 hp) and offers a constant 650 Nm (479.42 lb-ft) of torque to the crankshaft between 1,700 and 5,500 rpm. Its performance is simply brilliant as it can accelerate from a standstill to 100 km/h (62.14 mph) in 4.2 seconds and it has an electronically limited top speed of 250 km/h (155.34 mph).
Due to these performances, the fuel efficiency of the twin-turbo V8 gets to be nearly unbelievable. It uses up only 10.2 liters per 100 km (23.06 US mpg), much better than its rivals. The previous model with the 5.2-liter V10 engine had a fuel economy rating of 13.2 liters per 100 km (17.82 US mpg).
Even if its output increased by 51 kW (70 hp), its fuel consumption dropped by almost 23%. The new Audi S8 features the combined technologies of the Audi modular efficiency platform, such as the recuperation and start-stop systems.
This recently developed "cylinder on demand" technology has a major role. Its efficiency is improved and is especially obvious at moderate highway speeds since under part load, it deactivates four of the eight cylinders. Noise and vibrations are minimized as the S8 comes with a series of acoustic measures like the Active Noise Cancellation system. The S8 becomes sportier and more efficient due to its eight-speed tiptronic.
When possible, tall gears at low revs are used. But the driver may also choose to downshift quickly and comfortably. The tiptronic sends the power to a quattro drivetrain, activating a self-locking center differential together with the sport differential at the rear axle. During dynamic driving, the biggest share of the power moves to the outside wheel to push the large sedan into the corner.
To mark the S8’s special position in the Audi range, it has been give fine design elements on its 5.15 meter-long (16.90 ft) frame. The single-frame grille is platinum gray and chrome covers its eight double bars. The bumper seems sharper with its aluminum-look blade. The side air intakes have high-gloss black slats and aluminum-look ribs. Body color trim strips are seen on the sills. Its door handles have aluminum strips and it has polished aluminum-look mirror housings.
The diffuser insert at the back of the car has a blade with a two-layer aluminum-look finish offset with some portions in platinum gray. At the end of the exhaust system, there are two oval dual tailpipes that have a chrome-look finish. Audi placed S8 or V8 T badges in the front, on the back and on the sides. A total of 13 shades are available but two (Daytona Gray and Prism Silver) are exclusive to the S8.