The Audi RS4 is the brand's compact A4 sedan
cranked up to 11. Under this small car's hood is a big V8 engine that provides muscle-car thrust in concert with a chassis tuned equally for high-speed cruising and enthusiastic corner carving. Despite all that performance potential, the RS4 provides luxury-car ride quality thanks to a suspension unique among A4 models. The design of the nicely-finished cabin is a model of German efficiency.