- insect/bug like vehicles
- final race placement still decided by a mix of stunt stars and actual position you finish the race
- ground deformation returns
- drift/smash into other players for more points
- multiple paths and shortcuts on each track
- ladybug, beetle, grasshopper, frog, turtle, bat, mouse, mantis and more themed vehicles
- power-ups: some of them allow you to transform and run on two legs
- trucks were dropped and insect/animal vehicles were added to better fit the crazy action
- same tilt controls as ExciteTruck

No, I didn't rip this right from Nintendo Power, scan it and post it. This comes from Nintendo's own Nintendo Power website, where they offer two-pages of the exclusive reveal. Enlarge that image and read up!