The 2008 Audi RS 4 is the performance flagship of Audi's compact executive car, the A4, in its fourth generation at the time. Propelled by a 4.2-liter naturally aspirated V8 producing 420 horsepower, it comes with the brand's signature quattro all-wheel-drive system and is mated to a six-speed manual transmission exclusively. Available as both a sedan and cabriolet, its features include adaptive suspension, sporty bucket seats, a flat-bottom steering wheel and Audi's MMI infotainment system with navigation. Safety features include front-seat side airbags, full-length side curtain airbags, antilock brakes, electronic stability control, and traction control. The RS 4 stands out for its blend of performance and luxury, along with its everyday usability.