I am 6' 3 and fit reasonably well in my GT S. Keep in mind that this is a sports car, not ment for long ( really long ) distance road trips.
Being long in the body, I have to play a bit to get comfortable. By moving the seat ( bench) back to get in, and then moving the back rest back and sliding the bench forward, the seat sort of slides under you. I have to release most of the air in the bolsters to accommodate my big fat a**.
If you are a big person you have to want this car. It has a simple mission, go fast fun. If you use it to go grocery shopping, you will be disappointed .