Automotive industry, is a wide range of companies and organizations involved in the manufacture and marketing of motor vehicles, including most components, such as engines and bodies, but excluding tires, batteries, and fuel. The industries principal products are heavy, light and medium duty commercial vehicles like trucks, buses, pickups, vans, sport utility vehicles, passenger cars, two wheelers, three wheelers, tractors and earth moving equipment. It is one of the world's most important economic sectors by revenue. The term automotive was created from Greek autos, and Latin motivus to represent any form of self-powered vehicle.