I don't know about everyone else, but every time I see a Smart Car, I just have to laugh. I don't imagine the fuel savings (which isn't really that much) would make it worth the humiliation of actually owning one. The images in this video made me laugh as well. Supposedly they are body kits for Smart Cars.
I am guessing these are Photoshopped images. If you look closely, you can see where they would have had to reconfigure the frame, axles, brakes etc. making it a little more than just a "body kit".