Nintendo announced at their recent 3DS focused press conference about Mario Kart 7′s online features. The game will support 8 players whilst retaining 60 FPS. Also, players will be able to create “communities” to allow groups of friends to race against. The StreetPass feature will basically collect data from other players when passing them. This includes their win/loss records and ghost data. You will then be able to race against their Mii ghosts. Players will also be able to race against 7 ghosts at a time, instead of the usual 1.
SpotPass will allow players to download daily ghost data. In addition to this, similar to the Wii’s Mario Kart Wii channel, there will also be a Mario Kart 7 channel, where you can select a player’s data and then race them online.
Similar to Mario Kart DS, players who do not have their own Mario Kart 7 game will be able to race via Download Play, restricting players to choose Shy Guy and only offering a limited number of kart customisations.