There's is something wrong with mine then. Or maybe it's with me.
'Cause I'm "only" 5'10" (ok...5'9ū") and even if It's a nice fit for me, I can't imagine someone with 7 more inches fitting in there.
My main concern isn't really about the roof height but about the windshield top edge.
When I'm stoped at a red light, I can't see the light without going into some contortion.
OK...I'm driving with the seat in a very straight position but the seat height adjustment is all way down. Like QuickSilverDon said, it goes ridiculously high but doesn't down so much.