Go to:
http://www.teamassociated.com/racerh.../gearform.html
Go to the MPH:car specs
Then type in 1.432 in the tire size
2.071 in the gear ratio
and 48003 in the motor rpm
It comes out to 98.732 mph.
Now take 31% of the motor rpm's off (for drag).
Which is 33122, then recalculate.
It comes to 68.119 mph.