auto racing(n = noun.act) car racing - the sport of racing automobiles;
is a kind of racing

auto, auto accessory, auto company, auto factory, auto limitation, auto loan, auto maker, auto manufacturer, auto mechanics, auto part, auto race, auto tire, boat racing, camel racing, car racing, dog racing, greyhound racing, harness racing, horse racing, hydroplane racing, racing, racing boat, racing car, racing circuit, racing gig, racing shell, racing skate, racing skiff, racing start, racing yacht, thoroughbred racing