Alex Roy, editor-in-chief of "The Drive," discusses the biggest winners in the self-driving auto industry. Roy notes that Waymo is leading because it has major financing. Tesla, he notes, is a close second. The biggest differences between each, as noted by Roy, is data and how each company uses its collected patterns to further their technologies. Alex also discusses the future of self-driving trucks. Tesla is expected to unveil its first self-driving semi next month.