About the Convert-a-Car
The Convert-a-Car is the number 3 car. It is a wagon/plane/boat-shaped car equipped with a multitude of gadgets and which can change into just about anything that moves.
Among the things his car has transformed into are a motorcycle, a jetpack, a flying carpet on wheels, a forklift, an arrow, a bicycle built for two, a bowling ball, a basketball, a blimp, a rocket and even an exact duplicate of the Slag Brothers driving the Bouldermobile (when the real Slag Brothers saw this, they cheered their doubles on!).