Quite interesting.. this sort of machine can bridge the gap between GA
and the practicality of using small airplanes for commuting.

"Either way, it boils down to this: You sit down behind the steering
wheel, drive to the runway, unfold two wings and take off. You can fly
500 miles on a tank of gas -- regular unleaded -- and when you land,
you simply fold up the wings and drive where you want to go. At the
end of the day, you fly back, drive home and park inside your garage."

http://dsc.discovery.com/news/2009/0...lying-car.html