What are the components of four wheeler automobile explain their function and identify materials?

A four-wheeler automobile primarily consists of the chassis, engine, transmission, and suspension system. The chassis, often made of steel or aluminum, serves as the vehicle's framework, supporting other components. The engine, typically constructed from iron or aluminum alloys, converts fuel into mechanical energy to power the vehicle. The transmission, made from metal gears and housing, transfers power from the engine to the wheels, while the suspension system, utilizing materials like rubber and steel, ensures a smooth ride by absorbing shocks from the road.