The lower part of the frames are the same, its the roll cage over the drivers head that gets tight. THe round top coupes have less head room if you are a big driver. Like I said I am 6 3 @250 and I have a sedan. I would not say that I have a ton of room, but I am ok. I need a 10 degree seat to get my butt back so my knees are not hitting the steering wheel. I also just put a longer steering shaft in , about 3 inches longer. That moved the steering wheel towards the seat and gave me more leg / knee room.....
DAVE, Northern Ohio Legends 41