Try having an infotainment system that will just randomly disconnect and crash Android Auto every ~10 minutes. I don’t own a car myself, but instead use a non-profit car rental service, so I’ve tried my fair share of different manufacturers and models. The worst of them all is the one in Skoda Superb (VW group company), if you put it back from reverse into drive, it would normally just freeze the entire screen while still on rear camera, and the front sensors wouldn’t work. Then it would reboot the whole infotainment system after some minutes.

The worst physical interface can also be found in VW group cars, both VW ID3 and Cupra Born have a completely horrible capacitive touch button setup, which makes you unintendedly touch them when just holding the steering wheel, doing things like disabling lane control, changing cruise control etc. They said they chose them because they wanted to give a “premium feel”, which indicates they basically did zero user testing. At least they are changing to physical buttons for new models. The software is pretty bad as well, laggy and unintuitive menus. Their CEO recently resigned, and they’ve put $9 billion into increasing their developer team past 10k people, so I assume it has been acknowledged and will get better in newer models.