Fuel: 18 mpg city / 27 mpg hwy
As the high performance variant of the recently redesigned A6, the 2013 Audi S6 features the newly developed 4.0L twin turbo engine that produces 420 hp. (The same engine will be used to power the new S7 and, with an output of 520 hp, the S8.) All new last year, the A6 continues in Premium, Premium Plus and Prestige trim levels, and is offered with the 2.0T or 3.0T powerplant (Prestige is offered with 3.0T only). The S6 makes us of cylinder on demand, active engine mounts and active noise control technology in order to achieve high levels of both efficiency and performance. Inside the S6 unique S treatments are featured, including Valcona leather with diamond stitching, sport seats, and the choice of Carbon Atlas, matte brushed aluminum or fine grain natural Ash brown or Oak wood inlays.