I'd imagine those are designed with keeping your focus on the road in mind, by doing things like limiting notifications to only incoming phone calls while you're driving
Unfortunately your imagination doesn't correspond well with reality.
They also display texts, have tons of different entertainment integrations, display maps etc. All with crazy high input latency, zero tactile feedback, and a completely homegrown UI to leave you constantly guessing and reading whenever you do simple things like change the radio station.
They also display texts, have tons of different entertainment integrations, display maps etc. All with crazy high input latency, zero tactile feedback, and a completely homegrown UI to leave you constantly guessing and reading whenever you do simple things like change the radio station.