The Audi RS 4 is a high-performance variant of the Audi A4 family. It is a compact executive car, produced by Audi and marketed in two generations since 1999, with only a five-year gap between the two generations. It is a 5-door, 5-seater station wagon, powered by either a 2.7-litre V6 engine or a 4.2-litre V8 engine. The RS 4 has a firm suspension, powerful brakes and a sporty look that makes it stand out from standard Audi A4 models.