Wow, talk about missing the point. Four grids of uniform buttons, they think that's an improvement over a touchscreen? There is zero practical distinction between taking your eyes off the road to see which button you're pushing vs taking your eyes of the road to see which part of the screen you're touching. GOOD HVAC/radio design means you can perform ALL essential functions WITHOUT taking your eyes off the road AT A…
I’m pretty sure you regularly use a piece of plastic with 104 near identical buttons without looking at any of them.
Buttons in car control panels require users to leave the default position of hands-on-wheel and acquire the new button. That’s an expensive operation, and it’s well-studied — https://en.wikipedia.org/wiki/Fitts%27s_law
Also, keyboard layouts are static — learn QWERTY once, use it forever. Car control panels are usually different between cars, so learnability is harder. Many people regularly drive multiple cars, increasing difficulty again.