At Nintendo's E3 presentation that's not actually happening at E3, we've heard the next installment of the Mario Kart series is coming to the Wii U sometime in spring 2014. Mario Kart 8 doesn't stray too far from what fans expect of the casual racer, but there are a few new twists. Courses now have 3D aspects to them, allowing you to "defy gravity, racing up vertical walls and upside down." We'll continue to update this as we get more details, but there's some eye-candy below in the meantime.
