Legends car racing is a style of auto racing designed primarily to promote exciting racing and to keep costs down. The race car bodyshells are 5/8-scale replicas of American automobiles from the 1930s and 1940s, powered by Yamaha XJ1250, FJ1200 (both air-cooled) or, starting in 2018, FZ09 (water-cooled) engines. The worldwide sanctioning body for legends car racing is INEX.