How tall are you? I'm 6'2" and have plenty of head room, I felt really cramped in the legs tho after having the car for a few weeks. I'm used to it now tho, doesn't bother me even on a 9 hour drive.
But I know some people are taller than me, so...
MODS: PW TMIC, Cobb catted DP, HKS cat-back, AVO filter, Bren e-tune; Konis/Epics, Advan RCII