OSX/ios may not be able to tuned into an real-time systems for iCar(if it existed);and considering the quality of Apple's software in recent years,I would say:there is still a long journey.
I heard cars use a network of microcontrollers because operating systems are not real-time enough (process timesharing).
They would probably only use an OS for the in-car display, like Tesla does (Ubuntu), which obviously isn't (shouldn't be) critical for the other functions of the car.
This has literally – literally — no relevance. No car would ever run a Darwin stack, except perhaps on some kind of user interface, where the demands are totally different.
Wouldn't need to. You don't use your desktop/mobile OS for car controllers...
If you use it, you do it for car Media and other similar UI.
>and considering the quality of Apple's software in recent years
That's mostly bollocks. There were similar complaints ALL the years...