Grassroots Motorsports Ultimate Track Car Challenge

With our annual no-holds-barred track competition, we aim to find the fastest machine on four wheels. The Grassroots Motorsports Ultimate Track Car Challenge returns to Virginia International Raceway on July 18, 2014. Bring your raucous, flame-belching beast to the track and see if you can best the competition.

The rules are simple: All your car needs to do is pass a NASA safety inspection. Run any tire and any suspension type; add seven turbos, superchargers, displacement, spinning triangles; mount it to a production-based chassis or tube frame; use chromoly, carbon fiber, lexan—whatever your wrenching heart desires.