Koopa King

The Koopa King is Bowser's kart in Mario Kart: Double Dash!! and is a default kart. It is a very big and heavy kart and one of two six-wheelers in the game, the other being the Barrel Train.

According to the in-game stats, the Koopa King is the fastest kart in the game, as well as having the weakest acceleration, making it a bad pick for simple courses, such as Baby Park. It is also one of the heaviest karts in the game; its weight is tied with the Piranha Pipes and Boo Pipes.

In terms of its actual stats, the Koopa King does offer the highest top speed and the lowest acceleration of all the karts in the game, but it's also tied with the Bullet Blaster for losing the most speed whenever it goes off-road.

Trivia

 * The Koopa King and the Parade Kart are the only karts with a unique engine sound; all other karts' engine sounds are shared with at least one other kart.