Int'l autonomous car ice and snow driving challenge concludes in Changchun

　　A contestant car is seen on the race track during an international autonomous car ice and snow driving challenge in Changchun City, capital of northeast China's Jilin Province, Jan. 14, 2021. The three-day event, which was designed to test the adaptability and durability of autonomous cars in ice and snow circumstances, concluded Thursday at the Lianhuashan Eco-tourism Resort in Changchun. (Xinhua/Zhang Nan)