It would not suprise me if the market for the car/plane was in emerging and massively deregulated economies e.g. China where any enterpreneur can knock up a runway in his back yard.
Mobile phones were an expensive luxury in the UK, but cheap options in parts of Africa, S America and even as close to home as the Greek Islands, as these places lacked the communications infrastructure of the industrial areas (and would be too expensive to put in place).
Maybe underdeveloped countries
will provide the market (and may not be too stringent about licences)?