Demolition Derby

Also included at many demolition derbies in the US and UK are rollover competitions, where the object is to drive a car so that only the wheels on one side hit a ramp, causing the vehicle to roll over repeatedly. Drivers take multiple runs at the ramp until their vehicle dies. The driver who completes the most rollovers before their vehicle ceases to function is declared the winner. Compact cars, especially hatchbacks, are used in rollover competitions. Their lighter weight enables them to roll more easily than larger vehicles. However, with modern high-horsepower unibody sedans and coupes now appearing on salvage lots, some of this conventional wisdom is being questioned and some major competitions have been won by drivers of mid-size and full-size sedans.
Figure 8 racing
Various classes of vehicles have competitions staged on figure 8 shaped tracks. Bump To Pass Figure eights are also quite popular as they involve less prep work from the usual figure eight racer which usually can also race as an oval track street stock. Demolition derby vehicles - especially school buses - often compete on figure 8 tracks. The best known figure 8 track in the US is Riverhead Raceway in Riverhead, New York.