Audi came up with a smart promotional gimmick for it’s latest Audi. The company decided to use the iPhone with it’s huge userbase as their advertising platform to game as much reach as possible.

Audi released “Audi A4 Challenge”, A racing game for the iPhone. The game basically involves you driving around in an Audi and trying to constantly break your personal record. But what’s interesting are the controls. Acceleration is touch screen based and steering is done through the iPhone’s motion sensor. Pretty cool ha?

The game’s is free and is availale from the App Store.