I must be too old. To me the Pontiac muscle car era started well before the GTO. I was drag racing my new Catalina in 1959. Full size Pontiacs were very successful in the late 50's and early 60's. I presently own a 1961 Bonneville convertible and a 1961 Catalina 421 Super Duty. What forum do I go to participate with other early full-size car owners?