Personally I think that the following car functions should be mandatory physical controls - wipers, indicators, hazards, side/headlights, door locks, defogger / defroster, electronic parking brake. forward/reverse/neutral/park. And they should be controls that have fixed position in the car (i.e. not on the wheel) with positive and negative feedback.

And fuck Tesla or any other manufacturer that wants to cheap out on a couple of bucks by removing them. Removing physical controls has obvious safety implications to drivers who are distracted trying to find icons on a tablet.