Modern cars are composed by thousands of parts, which are arranged in such a way that they meet the specific function of displacement of the vehicle, however a car is not only designed for this, for this reason, they are divided into many systems, among them are: the exhaust system, the support system, the engine, the steering system, the power system, the electrical system, cooling system, fuel system, brake system, among others, but you can’t forget about ac gears because they work really well.