1. Reflections make you tilt, just to make some pesky highlights go away. Even if they are angled properly, there's always something (like a sun reflected by a watche's face) what causes nuissance at any angle

2. Car can go from a tunnel to a sunny valley in few seconds. That's 5 to 8 stops of dynamic range difference, that a human eye is easily designed to handle. Auto adjusting screen brigtness is never as bright as necessary in sunny conditions. Even if it were, it would be a significant battery drain and an element, that heats the cars interior already unnecessarily.

3. You don't have pure blacks in many of them, so that annoying halo at the corner of the eye is often present. You can solve it with an OLED, but those are even worse in bright daylight

4. All of the usually mentioned tactile feedback facts - you can reach with your hand to a AC knob, feel it's current set by finding the bulge with a finger and gently turn exactly how you want them. Zero lag, no eye contact necessary at all (keep that on the road!), instant feedback. Nothing that any screen can ever give.

5. Biggest gripe of all - modality. I think that there were some high ranking studies done early in design exactly against this type of input for high risk applications. Modality is the biggest enemy of discoverability and throws extra delays into otherwise instant input.

6. If you use a LCD variant, they interact with sunglasses polarity filter and, at some orientations, can be blocked altogeter. As you often use sunglasses exactly, because you want to see the road the best, it's contrary to the main objective of the control again.

7. Refocusing. If you can use a tactile control, with a good feedback, you're freeing your eyes from the need to adjust it's lens to focus from far to near to far again. Not many people are aware, that this is even happening, and can lead to overestimating your ability to keep engaged attention on the road.

I'd pay extra for a zero screen variant in a jiffy. Had I ever need to use a screen, I would've put my phone in a holder instead.

https://youtu.be/qZuR-772cks?si=rYM4EjvV7VeTEzx8&t=1570

The grandparent comment is about camera lenses with little to no near infrared cutoff filter. Some older iPhones were like that and that was the original breaking story.

I think there are quite a few bugs lingering in those agent-cli's and observability, would help a lot with reporting. Taking yours for a spin this evening, thank you!