I'm 6'1" and I fit better in my 1968 Datsun Roadster then my brothers MR2 Spyder (with 2ZZ).
The MR2 is really, really fun though. Just need more leg room.
I fit okay in a Miata. S2000 is close.
Myles and I in an Exige was hilarious but we both fit.
- Andrew