1) Flying cars like THe Jetsons - The regulation alone would have to put this so far beyond anything we could predict it would take all meaning out of it.
2) Hovering Cars - I would like to know the answer to this one.
Here are some actual specimens, in production (google search any of them and you'll find neat videos, too):
Terrafugia Transition ...
http://www.terrafugia.com/aircraft/transition
It's flown for years, runs on super-unleaded, and with folding wings can park in most people's garage. It's been to Osh Kosh numerous times.
Their upcoming TF-X model looks interesting, though I fear it may be so complicated that it'll have a harder time reaching market.
ITEC Maverick ...
http://itecusa.org/maverick.html
Ever see / hear of the movie "the End of the Spear"? The protagonist has a heart for helping * people living far from civilization, and one way is with (what I call) flying dune-buggies. Also been flying for years, in production, and quite durable.
* actually helping, by the way: providing knowledge, medical assistance, eye exams & services, dental exams & services ... all in a non-profit / volunteer fashion.
