Yes you can charge two cars on one circuit, you just need a more advanced charger that can either load balance between two connectors simultaneously or switch between them when one’s completed. It’s probably cheaper to just have a single normal charger and alternate days they’re plugged in though. That’s what we expect to do once we switch our second vehicle over to EV in the next few years.

Ahhhh. I didn’t think of that. Having an electrician out is never cheap.