In 1966, the Trans-American Championship racing series was created by the Sports Car Club of America (SCCA). During those early days, manufacturers competed head-to-head with modified versions of their production cars — these included the Ford Mustang, Mercury Cougar, Plymouth Barracuda, Dodge Challenger, Pontiac Firebird (and later the eponymous Trans Am), and of course the Chevrolet Camaro. Competition was fierce, and as is often the case in racing, teams were looking for any advantage they could get. Mark Donohue's Sunoco Camaro Z28 pushed the limits and bent some rules to achieve an incredible winning streak in the 1968 Trans-Am championship.













