Most cars have either three or five car doors, including the boot. Due to constant opening and shutting, the hinges, handles or other elements of a car door can wear out, necessitating its replacement.
Quality car doors for every make and model of vehicle can be found, though care must of course be taken when finding an exact fit for your car. Unless it's precisely the same colour as your original paintwork it will also need to be re-sprayed.
On regular usage car doors seem to sag after sometime. So before they get spoilt completely, it is is always advised to replace them with quality car hinges. Euro Car Parts stocks extensive range of car hinges for cars of every make and model. Show Less