I just don't really get this. Why would you want a flying car? It would have to be the most sturdy machine around... might as well use a helicopter, it's basically the same thing, or even the old classic; THE AEROPLANE. We have this to fly, we don't need to be messing around flying cars, it would be pandemonium. You can't draw lines in the sky and expect cars to keep in their path. And they'd be getting in the way of birds and aeroplanes and helicopters. And what if they all started to drop out of the sky? Loads of car crashes happen everyday, it would be chaos.
No, sorry, I'm not buying it.