Automobile Industry Permanent magnets are widely used in the automobile industry and dozens of magnets are available in a car. They have different materials and performances in various sizes and shapes. The main use of magnets in a car has the following aspects: electric motor, sensor, actuator, and fixed devices. In the EPS motor, electric door and window lock motor, electric seat motor, windshield wiper motor, headlight adjusting motor, rearview mirror motor and other parts, magnets will be used.