Senior director responsible for quality issues left last week. The reason might be this: "In an effort to drastically ramp up production, Tesla employees are now tinkering with the core designs of the Model 3 car and the production process, detailed by a New York Times report (paywall), something that experts say is unprecedented. Executives at Tesla decided that the car didn’t need so many spot welds holding the underbody together, so engineers found 300 “unnecessary” welds and reprogrammed the welding robots cut them from the production process." How Tesla is doing everything to get Model 3 cars out the door Basically this means that all those crash tests are not valid any more since the behavior of the body changes if you remove 300 welding spots. Unbelievable that they are risking peoples safety to meet production target set by themselves.