At the request of Mad physicist (http://www.flickr.com/photos/madphysicist/) I have created a more conventional school bus based on my Lunar School Bus (http://www.flickr.com/photos/billward/sets/72157607269478080/), suitable for an ordinary LEGO town. This bus is identical to the earlier fantastical model from the floor up; I just removed the antigravity bottom and rocket engines, and substituted a more conventional undercarriage. I had to reconstruct the nose quite a bit though. See the blog entry (http://www.brickpile.com/2008/09/14/wheeled-school-bus/) for more information. See also http://www.flickr.com/photos/billward/sets/72157607296046674