What will $33 million buy the world's biggest automaker? Its own rollover testing grounds. Currently, GM does it rollover testing on someone else's property. This investment is meant to prove that GM is serious about reducing the more than 10,000 people killed in rollovers each year — which accounts for 25 percent of all deaths on our highways. It's also meant to help GM develop and roll out its StabiliTrak technology to all its non-commercial cars by the end of the decade to help its customers avoid accidents and rollovers regardless of the road condition.