Wireless charging for some devices such as phones is 60-80% efficient. For cars, it seems to be in demand per "Several Companies Developing Wireless EV Charging

Wireless charging for some devices such as phones is 60-80% efficient. For cars, it seems to be in demand per "Several Companies Developing Wireless EV Charging": https://www.notateslaapp.com/news/1235/tesla-is-developing-its-own-wireless-charging-solution https://www.notateslaapp.com/news/1235/tesla-is-developing-i... If we can dream of self driving cars, we can dream of self-connecting cars. Something a bit like a toy slot car?