I have decided on the Inferno GT over the OFNA ultra GTP.
I plan on putting in a MM ESC with a feigao 7XL on 4S trakpower lipo.
I also plan on swapping out the two speed tranny with a center differential.

With this setup, running 4.2 inch ofna rims and tires, and gearing of 44/16, BrianG's speed calculator gives me a top speed of 48 mph, with what i assume is pretty conservative gearing for something this size and weight.

This is plenty of speed for onroad bashing, plus I assume I can gear up for higher speed if I wish. Does anyone see any problems with this setup?

Weight should be around 8.5-9 lbs.