easy wikapedia( not a slam against you, just trying some humor), but im not trying to start an argument, but i cant even count how many times ive been in an argument with people saying 6rs arent muscle cars. keep it calm here, wasnt trying to start ****. i bet you know alot more about mustangs then i do. to be honest most of my "knowledge" is directed towards the s197, probably because i drive one. still learning about the older ones. and no i did not know they offered them in the 64 1/2s.