It's one of science fiction's greatest unfulfilled promises, right up there with teleportation and time travel.
The big difference between the Transition, which is scheduled to hit the market in 2015, and the new flying car is that the TF-X would be able to take off anywhere, like a helicopter, and not just at an airport.
Its automation systems would make taking off and landing a self-driving process, though the driver would be able to take over manual control at any time.