Hybrid cars combine two or more different technologies, usually a gasoline internal combustion engine and an electric motor. Most hybrids today use internal combustion engines to supplement the batteries used for electric motors. Engines that use diesel or other fuels can also be used in combination with electric motors.This technology is used for small city cars, regular cars or even buses and locomotives. Hybrid technology in the automotive industry helps to reduce energy consumption that would be needed for the same cars with conventional engines, as well as reducing emissions.