New and used high power short dirt oval race vehicles. Powered often by a V8 with 410 ci displacement, or 360 ci displacement. Non-winged spring cars are sanctioned by the USAC, and is largely represented on the west coast of the U.S. Winged sprint cars have increased downforce generated with racing, which makes them faster and safer. These cars race in the World of Outlaws series, and at the Knoxville Raceway.