The joke my dad and I used to tell each other is that there's a German engineer behind each and every button in his car. Each German engineer has to iterate and reiterate and improve and buff and polish his button each and every year, for if he doesn't, he'll be eliminated.
Those German engineers are good, not only have all of their buttons survived, they've propagated and made many more little German engineers with new buttons that need polishing and buffing.
Whenever my dad got a new BMW we'd study the interior and see where a new button could be placed that didn't already have a button, and then we'd laugh when that space got used up the next iteration. Good times.
The German auto mfrs have gotten fat and happy. Their interiors used to be austere, only driving mattered, no cupholders! Now, it's button-itis. I blame Audi. They've always been the button company amongst the Germans. Audi's resurgence, led to MB and then BMW aping them and putting buttons everywhere. Of course, the above beauty pictured is a Porsche, and they haven't been immune.
Tesla's austere interiors more closely approach the original intent of driving, than these flugzeugcockpitz.
Just look at how many models they offer now. Take BMW for example, BMW has 7 X models, and 7 coupes/sedans, and everything comes in M versions, and a few token others. Back not so long ago, it was just a 3, 5 or 7, and the 7 barely sold. Now, if they can carve another niche out of the market, they will. How do you keep all the models straight? How do you keep all the buttons straight? Didn't anyone read the book about too much choice? What was it Paradox of Choice? Yeah... more is less.