Chang'an Automobile's driverless cars enter the boundary of China's capital Beijing on No. 107 National Highway, April 16, 2016. Two driverless cars produced by Chang'an Automobile in China started a 2,000-km test drive from Chongqing to China's capital Beijing on April 12 and arrived in Beijing on Saturday. Chang'an is aiming to put driverless cars into commercial use in 2018. Worldwide, at least 18 companies are developing autonomous cars, including BMW, Audi and Toyota. China's contenders include auto makers BAIC group, GAC Group, SAIC Motor, Chang'an and BYD.