There's a hole in the rear bumper, should I repair or replace it?

[JakeLee]

If the other party is covering it through insurance, of course it's better to replace it. If you're covering it through your own insurance, actually the bumper is just plastic and can be completely fixed through welding and repainting. Below is relevant information about bumpers: Concept: A device that provides cushioning when the car or driver experiences impact force. It is superficially designed to prevent external vehicle damage from affecting the vehicle safety system, with the capability to reduce injuries to occupants during high-speed collisions, and is increasingly being designed for pedestrian protection. Protection: Use corner indicator posts to determine the position of the bumper. The vertical markers at the corners of the bumper are indicator posts, and some company products even feature motor-driven automatically retractable types.