This past January, I rented an Audi Q7. It was brand new and had the Audi Virtual Cockpit which took me a full two days to grasp to the point where I could use it safely and required me to pull over several times to figure something out. Worse, the rental agency had removed the owner's manuals so I was without reference. One of the goofiest things was that the navigation moving map would mysteriously stop moving--allowing the car (me) to drive off the edge of the map--and didn't allow me to move the map, to re-center by touch, while the car was in motion, instead presenting an alert saying that the action was unavailable while the car was moving. As I was driving in an unfamiliar city, this issue forced me to stop several times so that I could see the map surrounding the car, it was simply horrible.
To complicate things, the rental agency had bound the two key fobs together with steel cable. This caused the car to arbitrarily recall the user settings from one key or the other--presumably whichever key it happened to recognize first. This had the effect of making the system behave even more randomly as it unevenly switched back and forth between the two user profiles each time I started the car. Every time I'd think I had tamed the user preferences, the "other" set would get loaded, changing the preferences. I solved this by removing the key battery from one of the keys but even with just a single profile, it was a remarkably trying experience and one that seemed to have been engineered for frivolous, show-offy, reasons rather than solid, task-solving reasons.
Mercedes-Benz has, in recent years, also made their UX very flashy and fiddly even though they are not using a touch screen. Just tuning a radio station is a multi-step process requiring the traversal of several menus but lacking the feedback in the sub-menus that is needed to let the user know they have actually made a selection. The user must come back all the way to the top of the menu structure to see if the selection they made two or three steps earlier has had any effect.
Just give me a dedicated knob.