996 coupe height limit for rear seats

I would say 5'6" to sit comfortably ?

I'm 5'11" and even without the seat squabs it's not nice.

Depends on how tall the front passenger and driver are. I would say it's a combination of the 2 and it's probably 11 feet tall combined, but with a max of 5 ft 6 in the back. When my 12yo daughter (5 ft 3) is too tall I will have to buy an M5!