Tesla CEO Elon Musk said the EV maker has produced over 3 million cars so far.Patrick Pleul/picture alliance via Getty Images Tesla has produced over 3 million cars to date, with 1 million of them made in its Shanghai factory. CEO Elon Musk said "production is a much bigger challenge than demand" for the EV maker. Tesla has been in "supply chain hell" for the past few years, Musk said in July. Tesla has produced over three million cars so far, with one-third of them coming from the company's Gigafactory in Shanghai, CEO Elon Musk tweeted on Sunday.Musk was congratulating Tesla Shanghai on making its one-millionth car, which came amid months of lockdowns and COVID-19 restrictions in China.