The Audi RS 4 has been in production since 2000 and is a big hit with fans of the brand. The compact, sporty RS 4 is designated as a Quattro and has been manufactured as an Avant, or wagon, a sedan, and a two-door Cabriolet. As a member of Audi’s highest trim level, the RS 4 is both sporty and luxurious. It is a modern classic in any of its forms and is destined to become a collectible car in the future. To find an Audi RS 4 for yourself look no further than our long list of classified ads here at FossilCars.