Almost everyone is carrying a touch screen in their pocket, complete with internet access, navigation, music, audiobooks, everything. Car manufacturers should just solve the problem of how to plug in the phone since they'll never deliver anything smarter or more powerful anyway. And, yes, physical knobs for things that you might do when driving, such as adjusting sound volume. The rest of the effort they should direct at the thing which they are good at; building cars.

Equivalently, TV manufacturers should stop trying to make their TVs smart and leave this to 3rd party devices such as the Apple TV, Chromecast or whatever. Just make great image quality and make the smartness pluggable. Anyway, I'm digressing.