You will be able to import your Mii into your game and then take them online thanks to Nintendo Wi-Fi which is a really awesome touch in my opinion. It's all well and good having an avatar and gamertag in XBOX Live but how about having your whole crafted persona actually sitting in the vehicle that others will be racing against. Nice move Nintendo.
Aswell as the Mii compatibility news Nintendo have also announced that the game will feature 32 tracks. 16 tracks will be new while the other 16 will be remakes of classic Mario Kart courses.
Players will be able to perform mid-air tricks during the races which when executed correctly will provide a speed burst. We should imagine that the new tracks will be designed with this in mind allowing for a number of opportunities to take to the skies throughout each lap.
The new game will see you racing against 11 other opponents but rumours suggest that there will be the ability to import other players Ghost Data aswell. It would be awesome if you could download the Ghosts of the countries best players to see if you can beat them.
Apparently there will also be the option of installing a "Mario Kart Wii" channel on your Wii's main menu giving you access to your best lap times and worldwide ranking scores.
It's all a bit XBOX Live but it's very exciting stuff for the Wii - particularly with the console less than holding it's own in the "Online Gaming" war.
Word has it that Mario Kart Wii will drop in Japan on April 10th but with Nintendo refusing to confirm anything it's doubtful we'll see the game in Europe until the summer (or Christmas).