Not trying to be a prick- I used to race on the canyon roads around LA (Kanaan Dume, Mulholland Rd.) and saw what happened to a guy who used spacers on his Camaro. The only part of his car left on the road was the wheel that broke off- the rest of his car went down a 1000 ft. ravine and blew up. The wheel still had part of the spacer on it, and we found broken studs all over the road.