This is very cool - cars that run on air?!?

Just took a break from the monotony that is sorting yet another box full of papers(I have issues with paper hording I think, note to self, file or recycle) and came accross a very cool car here.

I searched a little more and found this video on youtube.

Can you imagine a car that runs on air? And is reasonable to buy to begin with? I really hope it pans out because if they make it over here I'm all over it!