Tesla and SpaceX Chief Executive Elon Musk declared Wednesday that flying cars are on the way, reviving years of speculation that the automaker's long-delayed Roadster sports car could eventually leave the ground. Musk replied with a simple, three-word declaration: "You will get flying cars." Musk's history of commentary on flying cars has been notably mixed over the years. "There is a challenge with flying cars in that they'll be quite noisy. "My friend Peter Thiel once reflected that the future was supposed to have flying cars, but we don't have flying cars," Musk said, adding that if Thiel wanted one, "we should be able to buy one."