I completely disagree. I don’t want to login to my car. I want to plug-in my phone. When my wife is driving I don’t want to have to logout of my car and log her in. I want her to just plug-in her phone.
I have absolutely no interest in maintaining contacts, settings, and credentials in some “CarOS.” I don’t want to worry about someone borrowing my car and seeing messages, nav history, or contacts. I don’t want to worry about a thief seeing those things.
As I said I will not consider a car without CarPlay, and it has nothing at all to do with iMessage. I have one phone and I want to take that phone and plug it into a car. Period.