[scottomfg]

An interesting thing about Apple's CarPlay is that it doesn't demand very much from the car's headunit, essentially it just needs it to be a 'dumb' display that can pass along user input in the form of touches. This is a massive change from how all other phones currently interact with cars.

While I agree that BMW won't be even bothering to attempt backwards retrofitting to existing cars, it might be easier than we think to support it in future cars, the biggest catch being that BMW's iDrive doesn't support any kind of touch input on the screen itself right now, right? That'll have to change. After that, it'll be genuinely trivial to support it.