PC we USED to have bus races at our county fair, not figure 8 but on our little 3/8 mile dirt track, I helped build one for my buddy. I was scared, and we used to race stock cars there every week. My farm fuel guy had one and got rolled, if he doesn't thank God every morning he wakes up that he was tied down to the cab and not the chassis he should because when they come apart they REALLY come apart. We honestly thought he got torn in two, after two fairs (I think) they quit, my buddy sold it to some guy that turned it into a camper and everyone else turned them into RV's for hauling around wedding parties and such, a much safer use for them! It was fun building it but we got it there and there happened to be a guy in the pits with the tools and know how to get rid of the governor and turn the pump up on ours, that's when it got scary.