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22/08/2008 03:38. Ah, the iPhone -- is there anything it can't do? Introduced just a short time ago, the super-communicator's new App Store has been a runaway hit, spawning programs that put everything from restaurant reviews, games, and social-networking sites right in your pocket (not to mention PhoneSaber, which was sadly discontinued). So it comes as no surprise that now Apple's mobile is taking on the automotive world, too. First the Dynolicious app gave owners a built-in performance meter for just $13, and now Audi has become the first automaker to develop their very own program for Steve Jobs' baby, called the Audi A4 Challenge.

Basically a simple driving game, the Audi app offers users the chance to pilot a new A4 (seen from above) through a series of autocross courses that resemble a... // MotorTrend Magazine