Audi S8

In 2001, Audi introduced an S8 variant in the vein of Mercedes-Benz AMG models. Although it shared the standard model's platform, it featured a re-tuned, 360 PS (265 kW) version of the standard V8 engine, a re-tuned suspension with larger wheels and upgraded tires, enlarged brakes and a re-calibrated version of the 5-speed Tiptronic transmission (European-spec models had a 6-speed manual transmission option); quattro was standard. Production of the first-generation S8 ended in 2003, shortly before the introduction of the D3 platform A8.

In the last quarter of 2005, Audi introduced a new S8, now powered by a 450 PS (331 kW) V10 engine derived from the 5.0 L V10 used in the Lamborghini Gallardo. Much public confusion surrounded this engine choice after Audi's initial announcement because its power output is identical to that of the W12 motor, prompting people to ask why Audi would bother with the development of the V10.

However, Audi claims that the V10 revs more quickly than the W12, and that its lighter weight helps give the S8 a lower overall curb weight and better weight distribution (the SWB model being 20 kg lighter). Initial reviews from European automotive magazines seem generally positive.

Audi's factory performance claims for the V10 S8 indicate a 0-100 km/h time of 5.1 seconds. This would put it in a competitive range with the Mercedes-Benz S 55 AMG and the S600 (powered by a twin-turbo V12), the BMW 760Li (powered by a naturally-aspirated 12 cylinder engine) and the company's own A8L W12, although the upcoming version of the Mercedes-Benz S65 AMG will be faster, albeit at a much higher price.

The previous S8 came to popular prominence after the movie Ronin, starring Robert De Niro, where its dramatic speed combined with its size became a useful plot element, and gained the car much international attention.

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