Scott, you young whipper snapper, prior to the 200 MPH theoretical maximum, 160 MPH was predicted to be unachievable. Barrett can probably remember when it was "established" at 135 MPH. He can also remember when the first dirt was made.
FREUD
Breathing was said to be the first problem encountered by the Speed Racer.
I guess that is part of why they are going faster now to hurry and get it over with.
Did you ever notice that Nolan always drove with a water soaked rag in his mouth ?