I just remembered a perfect example of over-engineering stupidity. A family member has an Audi A6 AWD and his routine service light came on. So being a man in his early 70s he went to check the oil and filters etc himself. He couldn't find the dipstick, so he googled it and found it to ... not exist. Instead of a dipstick there is an electronic sensor in the engine sump and a handy read-out on the built in display on the dash. Good luck fixing that when either the display fails, the sensor fails, the wiring fails... I mean, the dipstick worked for over a hundred years, but wasn't tech enough for an oil check in a 2015 model.