Automobile Engineering deals with designing, developing, manufacturing, testing, repairing and servicing automobiles such as cars, trucks, motorcycles, scooters etc. and the related sub engineering systems. Automobile Engineering is a subset of the larger automotive engineering, and uses the features of different elements of engineering such as mechanical, electrical, electronic, software and safety engineering. Automobile Engineers work on the aesthetics and technical performance of commercial vehicles, and increasingly, the electronics and software involved with modern vehicles. They assess project requirements and develop and implement test procedures. They build prototypes of components to carry out tests on.