Parallel batteries for longer runtime mainly... I did steal some tie rod ends and made my own camber links, worked great. Our track is a 100 foot oval in the back yard that slants down over a little bank at one end, with two whoop-de-doo's in the middle of one straight stretch and a 8 inch ramp on the other straight. It's no professional course and was mainly designed to give us a place to play.

I'm lookin for more speed mainly to keep up with the duratrax evader my friend runs... after a lap or two... he's 3 ahead of me LOL.