At Apple’s WWDC yesterday, the company unveiled iOS 7, which includes vehicular integration due to roll out to a dozen car manufacturers next year. Basically, this will connect your iPhone to your car’s built-in screen, transforming it into an infotainment center, complete with turn-by-turn (albeit Apple Maps-based) navigation.
It will bring Siri integration, let you listen to and respond to texts, and (of course) provide access to your music. According to GPS Business News…
Phone, Music, Navigation, and messages (iMessage) are the first apps that will be available through the interface. Apple has not indicated if and how third party apps will be also able to be replicated on car’s screens.
You can see the entirety of the announcement in this video, starting at about the 1:44:30 mark.