Sounds like ducted fans, which are basically propellers inside of a tube. Lots of RC model planes use these things nowadays.
The problem with "flying cars" has always been the same. Its not the building of the vehicle itself. Heck we've had flying cars since the 50s. They're called helicopters. The problem is airspace. People envision that the "big sky, little bullet" theory of safety will prevail somehow without regulation, but it won't. These things have to deconflict with each other, avoid airspace that is used by other aircraft, avoid flying right over people, houses, etc at low altitudes, and a laundry list of other deconfliction problems. Easy to do when you're the only vehicle in the sky, like today's helicopters, but stuff like this is only a success if they build and use a LOT of them. Keep in mind that in the world of air traffic control, a plane with a single passenger takes up just as much room as the biggest jumbo jet when it comes to deconfliction.
One day I'll read an article about a flying car that devotes most of its content to addressing the above concerns rather than focusing on whatever new technology allows the thing to lift itself off the ground.