The Future Tire by Goodyear - It's a Sphere!
I'm not quite sure what to make of this. It's definitely way out there, and I don't think you are going to see them on the road any time soon. I think Goodyear is just trying to get people's attention. They certainly got mine.
Magnetic levitation is possible, though it's going to take some work to make this fly. Could you make the rubber in the tread magnetic? That would reduce the distance the magnetic field would have to reach across to make this idea work. It would also make the tires magnetic, which could make packing them for shipment a bit of a challenge.
By making the tires magnetic you are making the tires the rotors of an electric motor. This could be very cool, if the hyper strong magnetic fields don't cause some unexpected problems. Like pulling the nails out of the siding on your house when you pull up in your driveway.
Yes, very cool, very Science Fictiony.