Mark,
You might be surprised at how much room we can get into one of our cars. Thre are several modifications we do to them. Jorgen has one of our cars and he is 6'4" and so we had to do a lot of mods for him. When we were done with his car, no one here in the shop could even drive it anymore. I am 5'9" and simply couldn't reach the pedals.
We drop the foot box 2 inches, cut the seat foam 2 inches, drop the seat 1 inch, move the pedals forward 2 inches and move the seat back 3 inches. We are doing several tall guy cars right now. We'd be happy to have you stop by for a visit.
David
