Finally. We've been waiting for flying cars for a while now!

I kind of concluded that they really don't want us messing around up in the air - for reasons. Now, combined with self-driving capabilities, maybe it's back on the table :)

That being said, I suspect that they way do this, as shown in the demo, is sustainable for seconds only. And if I understood it correctly, the system is not really for flight, but for correcting momentum while driving in turns and such.