The 2008 Audi A6 is a 4-door, 5-passenger luxury sedan, luxury sports sedan, or luxury wagon, available in 4 trims, ranging from the 3.2 to the 4.2 with Tiptronic. Upon introduction, the 3.2 is equipped with a standard 3.2-liter, V6, 255-horsepower engine that achieves 21-mpg in the city and 29-mpg on the highway. A variable speed automatic transmission with overdrive is standard. The 4.2 with Tiptronic is equipped with a standard 4.2-liter, V8, 350-horsepower engine that achieves 18-mpg in the city and 25-mpg on the highway. A 6-speed automatic transmission with overdrive is standard.
