Here is Today's Nintendo Direct for Mario Kart 8

Mario Kart 8 Wii U Bundle: People who don't yet own a Wii U system will find it easy to get in on the action. On May 30 Nintendo is releasing the Mario Kart 8 Deluxe Set bundle that includes a Wii U Deluxe Set system, a Mario Kart 8 game, a red Mario Wii Wheel accessory and a red Mario Wii Remote Plus controller, all at a suggested retail price of just $329.99.

You also get another free game when you register Mario Kart 8!