Apple has been teasing an extra level of integration with cars beyond the likes of iPod Out or Siri Eyes Free, and it just gave us substantially more today. A new iOS in the Car feature will directly link iOS 7 with cars' infotainment systems, giving drivers an optimized interface for maps, messages and music. They'll be waiting awhile to plug in, however, as a number of automakers (including Ferrari) only expect to implement iOS in the Car sometime in 2014.
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WWDC 2013: iOS in the Car