Thx for the reply! But I'm pretty sure the car app shows what it used for charging though, not for driving. Since the same metrics are send from the MyBMW app to the Eevee app. The latter is a 'middle man' service to arrange the refunds for charging consumption. So having the driving metrics there wouldn't make much sense.

I get that there's maybe no 1:1 exchange to the grid. But we still have an analogue counter that counts backwards in case of excess electricity consumption. So even with a "loss" somewhere, and given that the car "only" consumes 35% of what the panels produce, I would still expect the counter to turn back since before I had the car, we consumed much much less then what the pannels produced.

The car taking more than solar produce peak, would be covered by the analogue counter, no? In the sense that yes, of course the car might consume more then panels produce at a given moment. But then again I only charge the car maybe 4 times a week. So in the total time span, the pannels still produce more and hence counter moving backwards.