This reminds me a lot of an old MAD Magazine item, where they took childrens' drawings of toys and turned them into actual 3-D objects. There was a rocket ship, a wagon, and a few more I don't remember. It was really awesome how they captured the "interesting" perspective so perfectly. Now I have to go find that again... Hooray for the DVD with all the issues on it!!
This reminds me of Lady Penelope's Bentley on "Thunderbirds" -- it had a twin rear axle. Of course, that WAS a puppet show, but still... it reminded me.