S1, E5: He has been a fixture at race tracks since 1955. He is one of motorsports true legends; as a driver, a builder and an owner. But for Dan Gurney, it all started very simply, as a California teenager with dreams of speed. The All Truck Nationals. The trucks come in all ages and sizes, customized minis, expertly restored classics, tricked out mid and full sized 4x4s, Monster Trucks and big rigs.