Bitemyshinymetalass78: I don't think you will get a supportable reason, other than even more rants from CJ DUB wanting to include the muscle and sports car labels to the Camaro. It seems as if all the material that explains the classification in books about pony cars does not matter. Even CJ DUB's statements that true factory muscle models are not "muscle cars" is contrary to reality. It also seems unusual to clam that muscle cars began in 1972! Even books written for children (Wild about Muscle Cars by J. Poolos) have the correct history!