The comprehensive exploration of a fascinating line of sporting vehicles. The RS in Audi RS stands for Rennsport, German for "racing sport," indicating their enhanced focus on sports car performance. But for automotive fanatics, those two simple letters are an evocative byword for truly special cars with fantastic drivetrain solutions and abundant traction. Born out of a partnership with Porsche, Audi's RS series grew from a single imprint into a constant presence in most of the manufacturer's model lines. In this richly informative and handsomely illustrated book--created in close cooperation with Audi--journalist Constantin Bergander and photographer Peter Besser provide an in-depth look at a legendary series of automobiles. This meticulously researched book tells the story of every RS model, from its origins in 1994, through the arrival of the disruptive Audi Avant RS2, all the way to the fully electric Audi RS e-tron GT of today. Bergander also digs deeper to provide context on the mechanical and industrial backgrounds of the cars, exploring the manufacturing plants where RS models are produced, the cars' various all-wheel drivetrains, and the multitude of strategies behind the vehicles. Peter Besser fills out the details with more than four hundred color photographs, many of them never seen outside of this book. Bringing together the comprehensive history of every model in the line, Audi RS is a book filled with as much power and elegance as the vehicles themselves.