a self-propelled automobile used for transporting passengers, appropriate to be used on a avenue or roadway. Many diferent fashions of cars have beenbuilt and offered commercially, possessing different options reminiscent of a retractable roof (in a convertible), completely different braking methods, completely different propulsion methods, and different styling. Most fashions have 4 wheels however some have been constructed with three wheels. Vehicles are often propelled by inside combustion engines (utilizing risky inflammable liquids, as gasoline or petrol, alcohol, naphtha, and so on.), and typically by steam engines, or electrical motors. The ability of the driving motor varies from below 50 H. P. for earlier fashions to over 200 H. P. bigger fashions or high-performance sports activities or racing automobiles. An car is often referred to as a automobile or an auto, and usually in British utilization, motor automobiles.