1 and 6. Official website, Public Security Traffic Management Bureau of Beijing Public Security Bureau, inquired that the limit number of Beijing May 17 was 1 and 6. Beijing, formerly known as Yanjing and Peiping, is the capital, municipality directly under the Central Government, national central city and megacity of People's Republic of China (PRC), the political center, cultural center, international exchange center and scientific and technological innovation center of China approved by the State Council, and one of China's famous historical and cultural cities and ancient capitals.