It is illegal to change the trailer basket to the opposite door, but it is not legal at all. Unauthorized modification is not allowed, not allowed at all, unauthorized modification, illegal, illegal, unauthorized modification of the car, not allowed, absolutely not allowed. It is a private modification. Unauthorized modification of vehicles According to the provisions of the Traffic Safety Law, no unit or individual may assemble a motor vehicle or arbitrarily change the registered structure, structure or characteristics of a motor vehicle; Changing the model, engine number, frame number or vehicle identification code of a motor vehicle. If you drive an illegally modified motor vehicle on the road, the public security traffic control department will detain the vehicle according to law, confiscate the illegal device and order it to be restored to its original state.