Magazine ad shows invisible 3D Mini

I saw this great example of integration of online and offline media in the German press recently. It uses a print ad, 3D software, a webcam and the internet to show a Mini Cabrio on the ad. It looks like the work of David Copperfield! You can be your own illusionist by downloading this pdf and by following the German instructions on this website. By the way this new technology also come with a new name: Augmented Reality.