Audi of America today announced the release of the first ever iPhone application from an auto manufacturer. “Audi A4 Challenge” is a driving game that utilizes the iPhone’s accelerometer (motion sensor) to steer a digital version of Audi’s entirely new 2009 A4 through a series of progressively challenging courses. Players maneuver the course and race against the clock to beat their own personal best time. The application is now available free of charge on Apple’s iPhone Application Store. “The iPhone is an ideal platform to help introduce the entirely new Audi A4 to the public,” said Scott Keogh, chief marketing officer, Audi of America. Located in Denver, Factory Design Labs, Audi’s interactive agency of record, designed the game in just two weeks.