Funny, I just saw this article on the news
DailyTech - Google to Announce in-Car Android Software Collaboration with Audi at CES 2014
Google wants to start interfacing its OS in cars. The next logical move is for apple to do the same and limit google's market share. Looks like we may see iPads working their way into cars as dealer options sooner rather than later.
EDIT: Just read this quote in a similar article lol.
"Imagine a future where you're racing your Audi through the streets and you get lost. There will be no need to pick up your phone. Instead, you'll just give a voice command to your dashboard, which will bring up navigation software. You will also be able to send an email to your friend telling him you will be late and play your favorite song to cheer you up — all without taking your eyes off of the road or your hands off of the steering wheel."