You know I tried to think of a legit case where screens are better - if I could get engine details that'd be rad but not actually that useful, weather might be nice as well but actually no while I'm driving I'd prefer just to ask my car or phone to tell me, maps are nice but really that can be done better by a GPS box with updatable maps/software (I own a car that has a nav system built in that is now non functional due to age, plus while it worked it was wildly out of date), rear view camera is nice but actually you could put that in the back or on the vehicle ceiling, it's safer to turn around and actually look, movies and games are not safe, and everything else is just text e.g. audio info, but you could get away with a couple of those old scrolling tickers.
I think you are right, we should be demanding cars with zero or very little dash at all.
Then I need to take my phone out of my pocket, find somewhere to put it where I can fiddle with the screen and change tracks while driving. Not ideal...
1. Eliminate the screen.
2. Provide an audio port.
3. When audio comes in through the port, play it over the car speakers.