Automobile is a motorized vehicle which has four wheels powered by an internal engine. It is used for land transport (items, for example) but it can also transport people. In the US, it is also called motorcar. Automobiles include, for example, trucks, vans, RVs, and personal vehicles referred to as cars, but cars mean not only the means of transport of people but also the railroad train component in which cargo or passengers are found. A chariot, a cart is also called cars.
