Wind-powered cars go where the breezes carry them

Disappointed in the article, it gives no info on how the car actually works.

Building the car: http://www.youtube.com/watch?v=oQfm4IycP7Y

Some test driving videos: http://www.youtube.com/watch?v=LGxnAWVGcNA&feature=relat... http://www.youtube.com/watch?v=Ay4zPq5O9nY&feature=relat...