Here is some of the latest info on Mario Kart 7 which is due out December 4th for the Nintendo 3DS, as well as new screenshots and a trailer in case you missed it.
A New Dimension of Kart Racing
The newest installment of the fan-favorite Mario Kart™ franchise brings Mushroom Kingdom racing fun into glorious 3D. For the first time, drivers explore new competitive kart possibilities, such as soaring through the skies or plunging into the depths of the sea. New courses, strategic new abilities and customizable karts bring the racing excitement to new heights.
Click Source Link below for further info and to view the screenshots.