My car itself can control when it's charging.

If you use anything more fancy on the PV side you can also control it on the other side.

And for more than one flat, load control is already available. We're I life we have 90 cars in the parking garage and there is a load controller

You plug in when you get home, and your car doesn’t actually charge until it’s scheduled…sometime later at night. Mine starts at 8pm. During the heatwave I bumped it to 10pm because it doesn’t really matter to me. It’s done charging in about 3 hours.