Maglev trains are in use in Japan and from Pudong airport. Ain't no secret about 'em.

To use 'em as a car, just put some magnets under the car, but with the same poles faced each other. Then put a great big magnet out in front of the car. The magnets underneath will supply the maglev and the great big one out front will attract the steel of the car, pulling it forward.

See? There's the general principles of the thing. Now it's only a matter of engineering.

PM me for how to invest in this. I plan to go IPO as soon as those pesky engineering details are worked out.