What are the three major parts of a car?

Engine is the most important part of a car, and it is also the part with the highest technical content among the three major parts of the car. Gearboxes are divided into manual gearboxes and automatic gearboxes. The chassis consists of four systems: transmission system, motion system, steering system and braking system.

The engine can convert the chemical energy of fuel into mechanical energy, so as to start the car. The function of the chassis is to support and install the automobile engine and various parts and assemblies of the automobile.