2007 Audi S6 - First Drive Review - Car and Driver

Audi's sedan range consists of A-cars in four sizes: A3, A4, A6, and A8. The S3, S4, S6, and S8 are faster, sportier versions. Even quicker, more focused vehicles devised by subsidiary Quattro GmbH are designated RS. The previous-generation S6 had a V-8 engine developing 340 horsepower. The twin-turbo RS 6 started life with 450 horsepower and ended up with 480. In the interim, Audi complicated things by endowing the smaller S4 with the 340-hp, 4. 2-liter V-8 and the RS 4 with a direct-injection V-8 that makes 420 horsepower. The S6 has the S8's 5. 2-liter V-10, but with its maximum output reduced by 15 horsepower to 435. And, yes, there will be a new RS 6, which is more than a year away and promises to outgun the 500-hp BMW M5. Audi will tell you this is all logical,... In the case of the S6, Audi maintains it is not just another contender in the German horsepower race. There is little outward differentiation from the A6: bright vertical struts for the deep single-frame grille, flared wheel arches and rocker panels, special 19-inch wheels, and daytime running lights consisting of two rows of LEDs under the front... Audi would have you know that there are 10 LEDs in total, corresponding to the engine's cylinders, although the discreet V-10 badges on the car's flanks are another reminder. Source: www.caranddriver.com