Photo taken on Sept. 13, 2018 shows a BJ40 Plus car during the Auto Qingdao Autumn 2018 in Qingdao, east China's Shandong Province. Over 600 exhibitors participated in the six-day auto show. (Xinhua/Li Ziheng)

Models show a vehicle during the Auto Qingdao Autumn 2018 in Qingdao, east China's Shandong Province, Sept. 13, 2018. Over 600 exhibitors participated in the six-day auto show. (Xinhua/Li Ziheng)

Photo taken on Sept. 13, 2018 shows a Weltmeister EX5 car during the Auto Qingdao Autumn 2018 in Qingdao, east China's Shandong Province. Over 600 exhibitors participated in the six-day auto show. (Xinhua/Li Ziheng)

People visit the Auto Qingdao Autumn 2018 in Qingdao, east China's Shandong Province, Sept. 13, 2018. Over 600 exhibitors participated in the six-day auto show. (Xinhua/Li Ziheng)

People visit the Auto Qingdao Autumn 2018 in Qingdao, east China's Shandong Province, Sept. 13, 2018. Over 600 exhibitors participated in the six-day auto show. (Xinhua/Li Ziheng)