Cars don't get much smaller than a clown car, but THIS one has a BIG mess; it's covered in pie. Howard, Nellie, Arnita, and Vincent need their clown car cleaned before their big act on the last day of the carnival, so they'll need to honk their way over to Carl's Car Wash. With a quick mess assessment and a few twists of some knobs, Carl's suds-sational car wash is ready to give these clowns' vehicle a good scrub-a-dub. Howard and crew leave as happy customers, and are ready to put on a show.