A touchscreen is a terrible interface for anything in a car, since you must look at it to operate it. Tactile dials/knobs you can feel for—and ideally feel diff

A touchscreen is a terrible interface for anything in a car, since you must look at it to operate it. Tactile dials/knobs you can feel for—and ideally feel different to each other—are the best interface for anything in your car that you want to use while driving. Voice can be sort of ok, as long as your speech models are locally stored (no internet blackspots), but deny access to those who cannot talk, or for whom you haven't bothered to build a speech model that matches their language/accent.