This is a good point, but CarPlay is not open interoperability. Open is DisplayPort. Open is 3.5mm jack. Open is Bluetooth.

The car has two proprietary tie-ins to two dominant mobile operating systems. That’s another reason this feels like failure to me. If the car had some standard way to hook a device to it to use touch screen and output sound, I might like that.

Instead my car (2016 Honda Accord) eliminated the standard 3.5mm jack and added a janky CarPlay implementation that sometimes freezes up entirely, and there’s no way to update it. This is not progress.