MIT grad student Charles Guan has converted the go-kart designs from Mario Kart into a real-life mini-vehicle that can hit 26 MPH.
The "Chibikart" has a 30-inch-long frame, making even an average person look like Donkey Kong while driving it around. It's a pretty efficient little cruiser, though, running on electric motors and an e-bike controller.
Oh, and it has four-wheel drive. That probably comes in handy when you're driving over banana peels.