(CNBC) — Luxury automaker Tesla is manufacturing a surprisingly high ratio of flawed parts and vehicles, according to several current and former employees, leading to more rework and repairs than can be contained at its factory in Fremont, California.
Tesla’s future as a mass-market carmaker hinges on efficient, automated production of the Model 3, which more than 400,000 people have already reserved, paying $1,000 refundable fees to do so. Musk said in July 2017 that Tesla would probably be making 20,000 Model 3s per month by December.