Audi has announced the release of a new iPhone game and an iPhone-optimized website as a promotion for its upcoming 2009 model A4 car. Audi A4 Driving Challenge, available as a free download from the App Store, is an overhead-view racing title that uses accelerometer- and screen-based controls to let the user drive the new A4 through a series of five progressively more challenging courses. Alongside the game, Audi has also launched an iPhone-formatted…
