An automobile, commonly known as a car, is a wheeled, self-powered motor vehicle used for transport and a product of the automotive industry but relatively less than a truck/lorry and bus, and mainly transport people, not cargo. There are passenger cars (cars, buses), cargo, special (fire, sanitary, mobile crane, autoclave, refrigerator, infantry fighting vehicles, etc.) and sports (buggies, racing, eg Formula 1 cars, rally cars). Passable cars are divided into road, off-road (including quarry), increased cross-country ability and high cross-country ability. Cars with bodies of a special design, intended for the carriage of certain goods, are called specialized; there are timber carrier, farm truck, cement carrier, gasoline truck, etc.