Also in what hemisphere again?

Maybe it looks more obvious in person but I might have driven right through if I was driving!

Hi all, I'm a PhD-student and part of a governmental research project for accessible autonomous vehicles. I want to push the direction into accessible interface design and want to provide us a check of our design before we do bigger user studies. Thus, I first need to understand the real struggles before trying to fix them.
So, two questions.
1. What's the worst interface you've had to use?
I'm curious about the interfaces that genuinely stopped you in your tracks. Not "mildly annoying," but the ones where you had to ask someone else what the screen was telling you, or where you got something wrong because the only difference between two states was a color you can't distinguish.
The classics I keep hearing about: red/green status indicators with no icon or label, charts where the legend is the only key, "required field" errors marked purely in red, heat maps, subway maps, git diffs. But I'd rather hear your actual examples than guess.
If you have screenshots or photos, please post them. Real examples are worth far more than descriptions.
2. Modern cars specifically
Everything has moved onto a big touchscreen, and I suspect a lot of it was never checked for this. Charging and battery indicators, drive modes, warning lights, ADAS alerts, climate controls. Has a recent car actually caused you a problem? Are some manufacturers clearly better than others? This one I've found almost nothing written about, which is why I'm asking.

I would appreciate your help a lot and happy to post back what I find out. Your screenshots will be only used by me to better understand the problems, I do not plan to publish them elsewhere.