I'm tempted to say that this is a simple and effective viral - but for two points.

Firstly, it clearly wasn't very simple for the poor soul who had to spend four days painting a car with some nail varnish in a - successful - bid to beat a world record.

And secondly, I also have to debate whether it is effective - because while clearly designed to promote the Fiat 500 that sits static in the centre of the window for the duration of the video, the comments accompanying the clip on YouTube range from asking for the name of the band providing the soundtrack to debating the brand of nail varnish being used.

Nice video though.