See the inside structure of a Tesla Model 3 door
We fix dents in cars by pushing them slowly and methodically from the interior side of the metal body panel. Modern cars and trucks have several components hidden on the inside of the exterior body panels. This can include reinforced intrusion beams, window regulator motors, sensors, and and array of complex electronics. Sometimes we have to remove interior trim panels in order to gain access to dents and navigate around these internal components.