Dragonfly

The Dragonfly is Wario's unlockable kart in Mario Kart DS. It is a red tractor that is taller than most karts. It has average acceleration, handling, and drift, and high speed, weight, and items. It has no low on it, making it one of the best heavy karts.

Trivia

 * The fact that Dragonfly is a tractor happens to be the most recent in a long line of obscure facts that seem to establish that Wario is a farmer. (In Wario Land II, Wario kept Chickens such as Hen, and the Fire Attack cutscene from Game & Watch Gallery 4 shows him doing a little farming.)