I don’t remember which specific brands had CarPlay and which ran their own infotainment systems, but I remember a couple years ago visiting dealerships of BMW/Mercedes/Honda/Toyota/Kia/Subaru/Ford and walking away either relieved that the car had CarPlay or internally cursing at their first-party infotainment system and promising myself to not even bother trying next time.
CarPlay and Android Auto give you the choice of your own app and full integration with the rest of your listening life.
After all, it’s just a protocol to let your phone use the display (or part of it) as a second monitor.
Source? I cannot find a single reference to Apple collecting fees, much less onerous fees, for implementing CarPlay functionality.
Automakers don’t like CarPlay because it makes cars fungible. I like CarPlay because it makes cars fungible. Apple seems like it would give away CarPlay (at least for now) to broaden the reach of its platform.