Originally Posted by reracer

Thanks for the previous compliment, btw.

It's an OFNA Late Model Dirt Oval. In my opinion, it has a bunch of advantages over any other chassis. Parts are hard to get now, though.
The belly pan is 5052 aluminum sheet.
Foam tires.
Cryo treating makes things like metal gears stronger and have less friction. It makes electrical components more efficient by changing the conductivity of things like copper. This is a very simple explanation of a complex process. See Cryoheat.com

Rob