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Penske Racing was founded in 1966 and also made its first Tran-Am appearance at Daytona in 1967 with driver Mark Donohue and a lightly modified Chevrolet Camaro Z/28. Donohue later revealed in his book, The Unfair Advantage, that he had guessed at the spring rates and suspension setup. He was too embarrassed to admit to Chevrolet engineers and others that he had no idea what was actually required. (Peter Luongo)
