Autonomous car technology is the Holy Grail for auto manufacturers today. Elon Musk claims self-driving cars will be as common as self-service elevators in the very near future. But first, the systems used to allow cars to drive themselves need to be validated. Currently, that means collecting data from billions of miles of real-world driving. Tesla has already passed the 2 billion mile mark. Once its Model 3 hits the market, its pace of data