Interfaces to the car should have standardized use cases/requirements that are interface independent. There should be requirements like - user should be able t

Interfaces to the car should have standardized use cases/requirements that are interface independent. There should be requirements like - user should be able to rapidly change stations manually without looking at the interface. For example I have a dial for my XM radio in my tundra, if I want to go from station 10 to station 100, I can easily do it by spinning the dial really fast two or three times without looking at the screen. In my honda, to get to that UI where I can arbitrarily tune, I have to hit 3-4 buttons all in different places. Then I have to hit the up button 90 times. I could imagine a digital tuner that is a bar that lets you simply touch where on the spectrum you want to select a station. But up/down arrow to tune should be banned.