A Quarter Midget car is a scaled-down version of an actual midget racer, approximately 1/4 scale. The cars are built around a tubular frame and are fully suspended with springs or torsion bars and shocks. The bodies are fiberglass, usually painted to the drivers preference. Surrounding the driver is a chrome-moly roll cage and nerf bars. The engines are single cylinder and are manufactured by Honda, Continental, Briggs & Stratton, and Deco. In the motors stock configuration they produce between 2.5 & 4 horse power. Modifications in the upper classes allow these engines to reach several times the stock horse power. These air-cooled 4-cycle engines are reliable and can produce as much as 10,000 rpm's in their more highly modified forms.