Elon Musk ordered Tesla engineers to stop doing a critical brake test on Model 3s Tesla CEO Elon Musk appears to have asked engineers at Tesla's factory in Fremont, California, to remove a standard brake test, called the brake and roll test, from the tasks Model 3 cars must complete to move through production, according to internal documents seen by Business Insider. The test was apparently shut down before 3 a.m. on June 26, according to a person familiar with the matter. It's unclear why this particular test was halted or for how long. According to an industry expert, the brake and roll test is a critical part of the car manufacturing process, taking place during its final stages. The test ensures that the car's wheels are perfectly aligned and checks the brakes and their function by taking the vehicle's engine up to certain revolutions per minute and observing how they react on diagnostic machines. What do you Model 3'ers make of this story?