On Thursday, March 21, 2019, Tesla filed a lawsuit against one of its former engineers, alleging that he copied the company’s Autopilot source code before moving to a Chinese self-driving car start-up in January. The lawsuit claims that the engineer, named Guangzhi Cao, copied more than 300,000 files associated with the Autopilot source code before joining his new employer, China’s Xiaopeng Motors Technology Company Ltd.