The Audi S6 is the sportiest variant of the <a href="https://www.motortrend.com/news/mt-1998-1999-2000-2005-2012-audi-a6-32731/" target="_blank" rel="noopener ...

Prices shown for the used 2008 Audi S6 Sedan 4D Quattro with NaN miles are what people paid to buy this vehicle or what people received when trading in this vehicle at a dealer. Edit options.

A 335-hp, mild-hybrid 3.0-liter V-6 is optional. If you’re a car shopper with a need for speed, the S6 is fitted with a 444-hp, turbo 2.9-liter V-6, while the performance RS 6 Avant wagon ...

The new Audi S6 Avant looks just as subtle as the old one – there are no RS6-style ‘quattro’ lettering on the grille and massive wheelarches here. You get the new matrix LED headlights with ...