I just lost 85 lbs so I could fit. They are not as tight as the Z/28 but fit me perfect now 6' @ 245.
No wiggle room though but very comfy. Especially with the ventalated seat that immediately cools your seat and back all the way up to shoulder blades. Love that feature. Memory settings as well.
I would never get a sunroof on one of these (that's for Lexus and Cadillac). The head room is actually very good with plenty of room for my helmet, but I will say that the Recaros do not lay back very far which used to be the way to get around head clearance for very tall folks and I had to do that on my old ZL1. This one doesn't need it as much but I would like to get a bit more gangsta lean for touring mode.