We've had discussions on these types of system before... seems like Audi have a demo which they've installed in an S3: Google gives us a simulated ride with Android Auto
The MMI computer is an expensive component. Very expensive as I remember from having it looked up in the parts catalogue! Still, you never know, it might even just be a software upgrade and able to use the existing AMI cable (or a new one)
The entire Google IO developers conference seemed pretty impressive, some really cool stuff coming out of Mountain View!
Looks like Audi have partnered with Google which is no good for me though Guess I'll be going for a Volvo or a Ferrari next time if I want to have iOS in the Car!
So this phrase seems to be very clear:
Customers will be able to choose at any time which of these platforms they wish to use in their cars.
Backing both horses in this technology race seems damned smart to me.