Mirrors help in various ways when you're driving. They aid you when you're making turns, maneuvering, or backing up. They also allow you to check your reflection before you get out of the car.
Don't think that car mirrors or auto mirrors come in one general form, as there are various types of mirrors, each type having its own particular role in your vehicle. The rear view mirror is the wide rectangular mirror found above your car's dashboard that you look at to view anything behind your car. Side mirrors are the mirrors placed in the left and right side of your car. Towing mirrors are mirrors mounted outside your car (and sometimes placed onto a car's existing mirrors) for added visibility when your car is being towed. Other types of car or auto mirrors include the automatic dimming rear view mirror, wide-angle mirror, power mirror and lots more.