BMW USA offers inside scoop on some of the toughest tests their cars have to pass before they become production ready. For the extreme heat testing the team of engineers and test drivers head to the Death Valley in America. They could have done the same in the middle east as well, but Death Valley allows them to devise tougher tests since it has less humidity and it also has lots of hills. So it’s actually a heat/ hill climb test combo! See how it goes down.