As Mark Donohue matured in the 1960s, so did American road racing. Starting out as a simple sports car enthusiast and amateur racer, he went on to win Trans-Am and Can-Am titles and the 1972 Indianapolis 500. Donohue died following a crash at the 1975 Austrian Grand Prix, but his 1974 autobiography long has been one of the essential books about American racing and is much prized by collectors. now it has been reprinted with a hundred new photographs plus reflections on Donohue's career by Roger Penske and others. Collaborating with well-known engineering writer Paul Van Valkenburgh, Donohue tells his tale by remembering the cars he drove, and his book becomes the story of how racing became a science as well as a sport.