
Mercedes have launched a free app which lets you do a "loop the loop" (which is the correct technical term) just like in the advert which used to star an old German test driver and now stars an old German F1 driver. So if you have an iPhone get the app at itunes.com/app/slsamg and if you don't we've kindly provided you with the video of the real thing:
image source: http://blog.mercedes-benz-passion.com/