If I didn't know better, I might think this game was designed by M.C. Escher. This time, your racer's car/bike has magnetic wheels that allow it to drive on roads that flip sideways and even upside-down!
Here are some screenshots that show off some of the places this ability can be used:
The characters that have been confirmed for the game are: Mario, Luigi, Peach, Daisy, Bowser, Donkey Kong, Yoshi, Koopa Troopa, Toad, Toadette, Wario, and Waluigi. They haven't confirmed any new items for the game, but i suspect they may soon.
Anyone else excited for the game?