That sounds very complicated. You have to design it for various ground clearances, it would be more expensive to install and maintain. You limit other uses for

That sounds very complicated. You have to design it for various ground clearances, it would be more expensive to install and maintain. You limit other uses for the ground space with whatever rails or guides that would be needed. Or, if it’s smart and uses vision or similar tech to align with the connectors, then more expense and maintenance. On the car itself those contacts would need to be protected from road hazards. So more expense on that end to have a motorized cover the driver has to operate. People know how to use plugs. They’re cheap and familiar. And if standards change, adapters are easier to build. This is cool, though: https://youtu.be/octvXMaTG44 https://youtu.be/octvXMaTG44