Is it true that customs controls cars?

Customs cars are divided into internal control cars and confiscated cars. The state-controlled car is the State Council's internal control. This car is exempt from purchase tax and has no supervision period. Confiscated cars are smuggled and detained, and there is a supervision period. In other words, if you buy it back, you can have a room once, and you have to wait for a year or two for the second time. It is also exempt from purchase tax, but the confiscated cars also have problems. The State Council's internal control vehicles need to be declared, and the declared companies can only declare if they have an import automobile business license issued by the Ministry of Commerce.