The Joker Bumper Car appears to be a bumper car that would be an expansion to 6857 The Dynamic Duo Funhouse Escape, AKA the Joker’s funhouse. It includes joker with a pie and the bumper car, which is made of a black bottom, gray base, and light green pieces that form the sides of the bumper car. The back of the bumper car is made of green pieces and a black 1×2 slanted tile.