Which do you prefer, the sleeper look of pre 1968 pony and muscle cars, or the extrovert body add ons, swoopy styling and decals of later versions? I think I prefer the boldness of the later cars. Sure horsepower was on the decline as the cars got fancier but they did look exciting.
1967 Firebird
http://www.er3.com/firebird/
Vs
1972 GTO
http://www.gtoheaven.com/images/GT0/Ad72GtoAcSparkPlugCp.jpg