YouTube user tully712 has posted a great little video showing off the scaled-down Batmobile he built from a go-kart. His Tumbler is a pretty spot-on model of Batman's re-imagined mode of transportation from Christopher Nolan's films, and while it doesn't allow the driver to break out of the car's body and speed away on a motorocycle (a la "The Dark Knight"), it does offer the chance to patrol your neighborhood's seedy underbelly in style.