The 103EX is marked out by its unusual wheels, which are designed to make it seem as if the vehicle is gliding on the air.
But one expert said market forces might prevent the idea coming to fruition.
Rolls-Royce shows `floating` future car
25 June 2016
Read: 2007
Rolls-Royce has shown off a design for its car-of-the-future at an event in London.
