What does the letter W on a car license plate represent?

[OAngelo]

The letter W on a car license plate represents the prefecture-level administrative region where the vehicle is registered, while the preceding Chinese character indicates the abbreviated name of the province where the car is located. A license plate number consists of 7 characters: the first character is the abbreviation of the province or municipality, the second character is the abbreviation of the provincial-level city, and the third to seventh characters are a combination of numbers and letters. The functions of a license plate are: 1. To number and register information for each vehicle; 2. To identify the region to which the vehicle belongs; 3. To trace the owner and registration details of the vehicle based on the license plate. Types of license plates: 1. White represents military or police plates; 2. Blue represents ordinary small vehicles with fewer than 7 seats; 3. Yellow represents ordinary large vehicles; 4. Black represents foreign enterprise plates.