Basically it’s a drone that can twiddle two of its propellers. A robotised, propeller version of a Harrier Jump Jet.
However, the notion that flying cars will reduce or avoid traffic congestion is absurd. Once such contraptions are finally made to work, they will not reduce or avoid traffic congestion They will cause traffic congestion to take to the skies. They will give a new dimension to what is now a merely two dimensional phenomenon, and not in a good way.
Enjoy these days of big, empty, blue skies, while you still can.