You mean that the license plate number contains the letter "tm", which has no special meaning.

the license plate number was originally composed of five pure digits, but with the development of the times, the number of cars has increased exponentially, and five pure digits can only supply 1, cars at most, so the combination of pure digits is totally insufficient. So the letters appear in the five digits, which can fully meet the number of cars now.

The number of digits of the license plate is determined by scientific basis. If there are too many digits, it will be difficult for witnesses to remember the license plate number when there is a traffic accident. According to the research data, in an emergency, five digits is the most ideal memory digit. Therefore, five digits become the combination of license plate numbers.

What's the meaning of the letter behind the license plate province

The letter behind the province represents the place where the vehicle belongs, where A is fixed as the provincial capital city and the others are other cities in the province. For example, cars in Jiangsu province, A stands for Nanjing, the provincial capital; B stands for Wuxi; C stands for Xuzhou; D stands for Changzhou; E stands for Suzhou; F stands for Nantong and so on.

Among them, F has no special meaning. Let's give some examples of F representing cities: Jiaxing in Zhejiang Province, Huaibei in Anhui Province, Longyan in Fujian Province, Fuzhou in Jiangxi Province, Yantai in Shandong Province and so on. You see, it doesn't mean anything.

As far as I know, Beijing is meaningless in the municipality directly under the Central Government, and it is only a serial number. Shanghai and Tianjin have not been assigned F yet, and F in Chongqing is the area under the jurisdiction of dmv in Wanzhou.