[sacred_numbers]

There will always be overhead, but that doesn't mean it will always be a huge amount of overhead. I believe the state of the art is 97% efficiency (https://www.osti.gov/biblio/1495980) which is better than a lot of wired chargers. Real world systems will be less efficient, and it may be too expensive, but a maglev system would be even more expensive.

[GravitasFailure]

"This is within the expected range of the thermal limits of the envisaged mechanical design of the coils and also indicates a minimum of 98% coil-to-coil power transfer efficiency."

Key here is coil-to-coil, NOT total charging efficiency, let alone "better than wired." Worse, it was a stationary setup with a distance of 5 inches between coils, so adding asphalt, protection for the car's coil, etc. is just going to make it worse.