I'm 6'5"... and all legs.
I the back up and slide back all the way then lean the seat back as far as I can.
It's not too bad. I haven't been on any 10+ hour drives yet but I have done a couple 500 mile trips and those went OK. (I don't stop for anything but fuel.) Probably a little tighter than my 07 350Z was but much better than my 2000 Cavalier.