Suspension of a car is aimed at absorbing the unevenness of the terrain on which it is moving, while keeping the wheels in contact with the pavement, providing passengers with adequate comfort and safety on the road and protecting cargo and Also prevent excessive tilting of the body during turns, excessive tilting in the front during braking.

The clutch transmits the power of the engine to the gearbox and allows the transmission to be interrupted, while a gear is selected to leave a fixed position or when the gears are changed while the car is in motion.

Most cars use a friction clutch that works by means of liquid (hydraulic) or more commonly, by a cable.

The modern clutch has four main components: the clutch plate, the disc and the rudiman.

The brakes and the detention system is one of the main active elements of the vehicle in terms of safety and efficiency in driving under any circumstances. They are fundamental when driving, allowing the vehicle to stop, but they suffer a wear that diminishes their effectiveness and that, eventually, forces their replacement.

Highlights of the system include front and rear pads and discs, although they are not the only ones suffering from wear and tear or the only ones that force changes as time and kilometers pass.

Every modern car is made up of two clearly differentiated parts: mechanics and bodywork. The body is the frame of the vehicle. It is formed, generally, by metallic plates united to each other, that constitute the support of the mechanical elements. Different classifications can be established, the most representative being: depending on the distribution of the outer space, its shape and the type of bodywork.

This classification is established by the shape of the body, by the number of doors, by the traction systems, the location of the propulsion motor group and the capacity for the transport of passengers, among others. In this way, it distinguishes between commercial vehicles and special vehicles.