It is important that we take time away from everything and concentrate on a little fun. It's also a little distrubing how much our human mind depends on "fun" to make good decisions.
Volkswagen wanted to see how much of a difference "fun" would make. While I do think we need to be careful that not all of our actions are based on "fun", this video is a great illustration of how parents can use "fun" to produce behavioral changes in their family.
The Volkswagen site is dedicated to the thought that something as simple as fun is the easiest way to change people's behaviour for the better. Be it for yourself, for the environment, or for something entirely different, the only thing that matters is that it's change for the better.