If you understand Japanese, then you will see what Mario Kart 7 is all about.
http://www.nintendoworldreport.com/news/28446
Nintendo has released a Japanese overview trailer for Mario Kart 7. The video looks over some of the confirmed features for Mario Kart 7, which include some of the new characters (like Metal Mario and Wiggler), first person driving and the online features.
The full trailer follows:
To go totally off track (no pun intended), why do all the MK7 headlines read normally on the front page, but become 'Mario 3D Kart' on the forums?
Seeing people notice that or have it in their quotes is an easy way to figure out who's too stuck up to turn off the profanity filter.To lazy. I also think some of the expansions are funny. Though Mostly just Lazy.