Well if something like that is to occur it will need a quantum leap in technology change. My guess is that it would need 50 years for us to advance that far! BTW I feel that this vehicle will not be called a 'car'
A car that can fly has already been invented many years ago. The problem is CARS need to be strong and heavy. Airplanes need to be light-weight to fly. The design-compromises make for something that is not ideal for either purpose.