[KSagal]

When I heard that bit about the minerals in the ground, but then saw the machine on an elevated highway, I was quite amused.

If it would have enough minerals (natural magnetism?) to lift that vehicle when it is on an elevated roadway or bridge, I cannot imagine anyone being able to keep fillings in their mouth, or glasses on their noses...

Still, if it could exist, it did look kind of fun. There was one scene where it was viewed from a distance, coming from a side street from the left, and then turning onto another street, where there was a soda can or some other debris under it, and it seemed to get blown out from under. I thought it was well done, even if not technically correct.

I don't see how a mag lev kind of system could not work, but it would take quite a bit of infrastructure, and clearly a change to current propulsion systems. I can see how a permanent bed could be implanted in the roadway, and frequency variations used with self propelled vehicles. My understanding of current mag lev technologies is that they propel the vehicles not unlike the movement of charges in a stepper motor. I am thinking of a steady series of charges, with dial in frequencies available, more like the signals in a fiber optic cable. We shall see, the future is arriving faster all the time, and far smarter people than me are working on these things...