no because of the tax code. as soon as your vehicle leaves the road the locale state taxes for gas tax goes out window. just like ohv gas is cheaper because there is no tax. since the creation of road taxes this supplements there income similar to sales tax but much higher. here where i am there is 46 cent per gallon. so there will be law makers from every corner of the government shooting us down.
As a pilot (okay student pilot) I sure hope the general public doesn't get flying cars. First the general public must learn how to properly operate a motor vehicle (car). Operating an aircraft (A/C) involves intense concentration. A/C have more limitations than motor vehicles do...not following A/C limits may result in...well a lot of different problems. Studying and paperwork are required before operating an A/C.