Ключевые слова: box, bull, car, cart, challenge, competition, competitors, creativity, derby, downhill, downhill ride, drive, event, fun, funny, homemade, joy, mobile, motion, people, play, playground, race, racecourse, racer, racetrack, rally, red, red bull, road, route, run, small, soap, soapbox, spectators, speed, street, toy, traffic, vehicle, wacky, wheels,