According to China's relevant policies and regulations, as long as the vehicle has a formal invoice, certificate, purchase tax and compulsory insurance, new cars purchased in any formal automobile trading market in the country can go through the household settlement procedures. That is to say, although manufacturers have heavy or light restrictions on buying cars in different places in order to standardize regional management and prevent the national price from falling, legally speaking, buying cars in different places is approved by relevant government departments. Therefore, after buying a car in a different place, we must pay attention to check whether there is a unified national formal invoice and vehicle certificate. Without these two certificates, the car can't be licensed normally when driving back. At the same time, it is best to check whether the after-sales service manual is stamped with the seal of PDI, so as not to affect the after-sales service of the car, because all the cars are guaranteed nationwide now, and the owner can enjoy the warranty service in any brand 4S shop in the country with the manual.