It's not a flying car in the way that anyone ever imagined growing up. When people think flying cars they think blade runner or fifth element. Not a car that can jump, interesting as a jumping car may be.
And frankly I'm not sure the engineering is all that impressive. I'm sure someone could've done similar a long time ago, there's just no point to it beyond, well, the parlor trick. Even millionaires have no use for a single seat, road-illegal vehicle with no storage that happens to be able to jump
No, but people will definitely buy the thrust version for the track, if it's ever built. (And assuming most tracks and drag strips even allow using the thrusters, which I doubt.)