I'm not a car person, but as an Ubuntu Touch user I have ran into issues with bike share providers who only allow renting a bike through an app which is only available for Android or iOs. I take umbrage at that and liken it to cars: imagine if you could only unlock your car with an Android phone or an iPhone. If your phone were to malfunction or got stolen or whatever you wouldn't be able to get into your car.
Now, as not a car person I don't know if there are cars like that, but seeing:
> it seems like the NissanConnect app [...] may detect when x86_64 Android is being used and then refuse to sign in.
Imagine having a ZenPhone 2, downloading an app to manage your car and it refusing to work. I'd go ape.