I have a Suzuki Grand Vitara 2010, and from left to right, the essentials buttons are (grouped by location):
- Window controls and lock/unlock
- Power mirrors adjustment (after someone else has driven the car)
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- Light stick/knob (it has auto mode)
- Steering wheel control for the head unit (vol +/-,...). It also has cruise but I don't use that
- Wiper and washers stick/knob
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- AC adjustment. It's a knob for temperature with 2 buttons inside (auto mode toggle and off)
- Fresh/recycled air switch
- AC/ventilation switch
- Ventilation speed. It's also a knob with 2 buttons, but I only remember the mode one (to switch between front/front and feet/heater/...)
- A defrost button
- ESP (ABS) disable button
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- Window/door lock/ on the passenger door.
There's nothing else. For any of those buttons I would hate to use a touch screen. With physical controls, I can rely on location, haptic, and muscle memory without using vision.
The Tesla I have has a few buttons for those things. For the other items where buttons don’t exist I don’t really need to use vision. The digital button is just right there but I think haptic feedback would be an improvement too. I think people also underestimate how much they look even when using physical buttons. You can’t really help it. You’ll glance down as you adjust that knob from warm to cool, maybe you like it with 4 indicator lights instead of 5 so you’ll just take a peak there. Nobody has their eyes on the road 100% of the time.
Some of the buttons you mentioned you have dedicated buttons for but at least for the Tesla some of those adjustments you do while parked and just swap the button mode. It allows for multi-use buttons which is pretty cool.
I’m not arguing against buttons or something to be clear, just sharing my experience. It seems like some other cars have a lot of unnecessary ones.