The Trans-Am Series is an automobile racing series which was created in 1966 by Sports Car Club of America (SCCA) President John Bishop. Originally known as the Trans-American Sedan Championship it has evolved over time from its original format as a manufacturers championship for modified racing sedans to its current form as a drivers championship open to GT style cars.The series was formed at the dawn of the pony car era and was derived from the SCCA’s A & B Sedan amateur Club Racing classes, based upon commercially produced cars which had been modified for racing competition. Originally the series was open to FIA Group 2 Touring Cars and it featured two classes, Over 2.0 Liter and Under 2.0 Liter, with both classes running together. The series was best known for competition among American V8 sedans such as the Ford Mustang, Chevrolet Camaro, Plymouth Barracuda, Mercury Cougar, AMC Javelin, Pontiac Firebird, and Dodge Challenger in the 1960s and early 1970s. Marques such as Porsche, Alfa Romeo, Datsun, Mini Cooper, Saab, and Volkswagen competed in the series’ Under 2.0 Liter category.
Trans Am on Wikipedia: http://en.wikipedia.org/wiki/Trans-Am_Series