Teeqoz on 19 February 2017
Hovercrafts will never replace today's cars. It will never be more efficient to waste a lot of energy to keep you suspended in the air than to just use all the energy to create forward motion. (And no, this isn't comparable to planes... planes are used because they can achieve really high speeds, which they can partially because they are flying at a much higher altitude, thus avoiding a lot of air resistance that we meet at ground level.)
