The difference between mudguards and mudguards lies in their names. The mudguard, also called mudguard, is the same thing. They are located in the front and rear of the car and have different structures and functions. The front fender, also called fender, is the cover of the car, which is located on both sides of the hood. The rear fender is a structural member and cannot be removed. Connected to the body frame by welding, located behind the back door. In the maintenance of the front fender, if it is damaged, it can be replaced directly. Then the fender is damaged and needs to be cut and replaced. The function of fender is not only to reduce the drag coefficient according to aerodynamics, but also to contribute to the stability of the car. Secondly, the existence of the fender can also prevent the silt rolled up by the wheels from splashing to the bottom of the carriage, thus protecting the automobile chassis.