How to Win a Free Car Doing Almost Nothing

I admit that, without even a working knowledge of Norwegian, I don't really know what's going on at this VW viral marketing site. But, from what I've been able to piece together through deductive reasoning, it seems like the German automaker is giving away a free car to the person who can mouse over an image of a VW Golf the longest. Things I have further been able to deduce: the mouse must be in constant motion, so hanging out with a browser window open won't cut it; there were originally close to 200 people participating, and now only six remain; the remaining contestants have been doing this for almost six days. What I can't tell is if it's just some clever publicity stunt, or a real contest. Either way, it's sort of like Hands on a Hard Body for the digital age, except without all the dying.