The relevant regulations on automobile modification are as follows: At present, there are generally two situations in automobile modification in China: one is that the manufacturer specializing in automobile modification redesigns and refits a car different from the original model with an engine, chassis or assembly that has passed the national inspection; The second is a license plate car, which is modified on the basis of the original car assembly for a certain purpose, and is collectively called a modified car. Most of the modified cars we usually talk about refer to the latter. Batch modified cars, according to the previous provisions need to finalize the design and identification, according to the "Interim Provisions on the management of national automobile, civil modified cars, motorcycle production enterprises and product catalogs" reported to the "Catalogue", you can apply for a car license. When a licensed car is modified, it should be reported to the vehicle management office at the place of registration, and the modification technical report can be modified only after it is reviewed and approved by the vehicle management office. After the modification is completed, the modification and change procedures can only be handled after inspection and testing by the vehicle management office when necessary.