The 2008 Audi S6 is a 4-door, 5-passenger sports sedan, available in one trim only, the Sedan. Upon introduction, the S6 is equipped with a standard 5.2-liter, V10, 435-horsepower engine that achieves 14-mpg in the city and 19-mpg on the highway. A 6-speed automatic transmission with overdrive is standard.
