Aside from my fantasy of leaving the cops in the dust (and I know I'm not the only one
) I can think of many things impractable about this car.
For one, you go to the supermarket, someone parks too close to you, opens their door and puts a dent in your car/airplane. Are you going to have to call an A&P, and spend $10,000 to get it fixed.... Also, would the FAA have to re-certify the plane for flight after any minor accident?
Here's another one. From what I've heard (and I know nothing about it, just heard it) regular gasoline doesn't do so well at high altitudes. So if you live on the west coast, can you really get enough altitude up to fly OVER the mountains.
I guess you wouldn't want to trust the valet to park your car.
How about the aerodynamics while driving. You've got your wings standing straight up. What happens when you're driving down the freeway at 80mph and come upon a sharp curve. You'll be fighting the wings that are standing straight up, and wanting the car to keep going straight. I totally suck at aerodynamics, but it seems to me this would be the case.
Would you want to drive around a $200K car and have to worry about other drivers, hitting deer, driving it down a dirt road? It's not very practical but it shows creative ingenuity at best. With our current economic mess it wouldn't hurt to have a good "look forward" project to show the world America is still the leader and inovator of the world.