Legal analysis: not illegal. But it is illegal to remove the trademark of the car. The words "no other automobile trademarks" are put on the rear of the car, otherwise it will be illegally modified and illegal. You can't install other car brands after the deduction. There are two ways to get rid of the words on the back of the car. The first method is to pry it open with a flat screwdriver wrapped in cloth. After prying it off, use asphalt cleaner to wash off the glue on the car body, and then wash it with clear water, so as not to damage the car paint. The second is to have a special glue remover, and then slowly draw the calligraphy and painting with thin lines. Either way, we should pay attention to safety and operate carefully.

Legal basis: Provisions on Procedures for Handling Illegal Acts of Road Traffic Safety Article 69 If the traffic administrative department of a public security organ has a record of illegal acts of motor vehicles outside its jurisdiction, it shall transfer the information of illegal acts to the traffic administrative department of the public security organ at the place where the motor vehicle is registered within the prescribed time limit after the information of illegal acts is entered into the road traffic illegal information management system.