A self-propelled passenger vehicle that usually has four wheels and an internal combustion engine, used for land transport. Also called motorcar. An automobile (or automotive) is a vehicle that is capable of propelling itself. Since seventeenth century, several attempts have been made to design and construct a practically operative automobile. Today, automobiles play an unimaginable role in the social, economic and industrial growth of any country. After the introduction of internal combustion engines, the Automobile industry has seen a tremendous growth.