Detailed answer
In the 1990s, Shunde, Nanhai, Gaoming and Sanshui were counties under the jurisdiction of Foshan (prefecture-level cities in Foshan), while Shunde and Nanhai had better economies and were successively upgraded to county-level cities. However, they continue to be under the jurisdiction of Foshan. At the same time, they also demand more rights, including their own license plates. Shunde is X and Nanhai is Y.
With the emergence of more and more vehicles, when applying for a license plate, adding five numbers to the original letter can no longer meet the requirements of arrangement. It is necessary to add another letter after the first letter and then arrange the numbers.
License plate: It is the driving license issued by the local vehicle management office. In the old days, it also referred to the licenses issued to some special businesses. The license plate is equivalent to the identity card of the vehicle, and vehicles without license plates are not allowed to go on the road.