You gotta take the milk away from that guy before he gets any taller!!!
Actually - I recall Fran saying that he's had people that were 6'6" tall in these cars. I'm better than 6'3" and I fit fine in mine..
That said - If you're going to replicate a racecar - rivet it in place. If not, and you are doing other "nice" things for esthetics then I would blend it..