The Audi A6 is a 4-door, 5-passenger luxury sedan or wagon. It is available in 4 trims, ranging from the 3.2 to the 4.2 with Tiptronic transmission. The 3.2 is equipped with a standard 3.2-liter, V6, 255-horsepower engine that connects to a variable speed automatic transmission with overdrive. The 4.2 with Tiptronic is equipped with a standard 4.2-liter, V8, 350-horsepower engine that uses a 6-speed automatic transmission. Adaptive Cruise Control and an adaptive air suspension are optional.The Audi A6 is a carryover from 2006.