I didn't mean it could run with the 2wd. According to an article on the HPI nitro MT (Not sure which magazine), there are rules for 4wd stadium trucks in their own class (ROAR or NORCA not sure), but nobody brings them so they never used them and probably got rid of them by now. the article was a couple of years agoand i can't find it on any of the magazine sites. I think it would be a great addition and get more people racing and not bashing.