Catbus - Totoro - from Miyazki's My Neighbor Totoro. Catbus gets around by running with its many pairs of legs, big Cheshire smile, and eyes that double as headlights. He happily takes passengers wherever they wish, regardless of terrain.
These people saw the Nekobus or cat bus (Neko means cat in Japanese) in Miyazaki's anime Totoro: . and then decided to mod their own vehicles to look like the cat bus! Link: Photo Gallery [in Spanish].