Staff members of Tencent show a temporary license plate of a self-driving vehicle for road testing in Shenzhen, south China's Guangdong Province, May 14, 2018. Tencent Monday received a government permit to test its self-driving car on certain public roads in the southern Chinese city of Shenzhen. (Xinhua/Mao Siqian)

Photo taken on May 14, 2018 shows a self-driving vehicle for road testing in Shenzhen, south China's Guangdong Province. Tencent Monday received a government permit to test its self-driving car on certain public roads in the southern Chinese city of Shenzhen. (Xinhua/Mao Siqian)

Photo taken on May 14, 2018 shows a self-driving vehicle for road testing in Shenzhen, south China's Guangdong Province. Tencent Monday received a government permit to test its self-driving car on certain public roads in the southern Chinese city of Shenzhen. (Xinhua/Mao Siqian)

A staff member of Tencent installs a temporary license plate of a self-driving vehicle for road testing in Shenzhen, south China's Guangdong Province, May 14, 2018. Tencent Monday received a government permit to test its self-driving car on certain public roads in the southern Chinese city of Shenzhen. (Xinhua/Mao Siqian)