Yeah mirroring is the only chance for now. Perhaps sanity will permeate them someday but not too likely for a while.
We can mirror to some degree on Gen 9 through the HDMI. Still have to do all inputs on the phone but it's so nice to be able to watch WAZE or anything on the car's screen.
So smart young people, figure out mirroring for us and the manufacturers can waste their millions on whatever they want.