Designs for the so-called Transformer (TX) Program have already entered the prototype phase, with ground and flight demonstrations slated for 2015.
Not only will this baby be a roadworthy aircraft, it’ll need to be able to stop on a time for vertical takeoff and landing; be light enough to fly but strong enough for heavy road duty (and resistance to small arms fire); and be as easy to drive and pilot as a car. Now we’re talkin’
Hey, if it doesn’t work out, they can always use the Chitty Chitty Bang Bang design. I’m sure Dick Van Dyke wouldn’t mind.