Check out the Terrafugia: http://www.terrafugia.com/aircraft.html I am skeptical as you are about the possibility of a practical flying car, but I've been watching this one for a couple of years and it seems on the right track. It'll be an LSA (Light Sport Aircraft) which makes pilot certification and maintenance simpler and cheaper. It would still have to be landed at an airport, but I think it's pretty neat nevertheless.