Originally Posted by
vasic
Conceptually, road-able aircraft (or carplane) has the ultimate utility, as it can get you anywhere and everywhere. And the only reason we don't have it today is because of conflicting regulatory requirements for road and air travel. The regulation will continue to exist (and may only become even more restricting), but if anyone can find even the minuscule area where the two sets overlap, and within that overlap build a roadable aircraft, it is Rutan. If this design does end up successfully meeting requirements for both road and air (regulatory, as well as utilitarian), it is entirely likely that it could become the more popular than C172.