Visitors look at vehicles on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Xie Jianfei)

Visitors look at a vehicle on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Xie Jianfei)

Visitors look at vehicles on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Wang Jianwei)

A boy leaves a vehicle after taking a look inside at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Wang Jianwei)

Visitors look at vehicles on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Wang Jianwei)

Visitors look at vehicles on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Wang Jianwei)

Visitors look at a Mazda6 Atenza on display at the 22nd Harbin International Automobile Exhibition in Harbin, northeast China's Heilongjiang Province, Aug. 3, 2019. The automobile event opened here on Saturday and will run until Aug. 12, displaying a total of 926 vehicles by 419 exhibitors from 12 countries and regions. (Xinhua/Wang Jianwei)