Can you imagine replacing your car as often as your Android/ios phone??

Seriously cars (to the degree that they use electronics... there is already far to much flaky electronics in modern cars) should be running essentially a bare bones industrial control type operating system. One that doesn't change every few years (a feature on one of my Android apps stopped working this weekend because of an API change by Google finally hitting)

Diagnostics are necessary but not as cool as they sound in the promotion (Windows, and most all computers have diagnostics, and still there are huge numbers of unidentified problems). The current OBDC diagnostics, while helpful, is far from able to actually diagnose problems (mechanical issues are pretty much not diagnosed at all). Even electronic errors (such as "O2 senser #3 error") only opens a window to a huge number possible problems, many unfortunately 'solved' by the dealer replacing parts until something works. There is often no way to actually test the individual parts.

My wife has an Android based camera. While it's nice to be able to run apps (including photo editing apps) on it, it's just simply too slow ... especially as waking up from sleep/or off. Dedicated camera OS will go from cold to ready in under a second