The Mario Kart series should have costumes/color changes, similar to the SSB series, or Mario Golf 64. But, you can still only have one of each character in play (during the one player mode, anyway).
Another thing that should return to the series is the personalised victory lap music. It hasn't been seen in the series since Super Mario Kart, and would be a nice throwback (since Nintendo seems to like putting references to past games in). --- Kinopio is the ultimate video game character! Who else can drive a kart, host parties, play tennis, give good advice and items, and is almost always happy??
ikr? And I was surprised to see that the Miis still have their boring racer outfits--I thought they'd automatically make it the Mii Outfit B costumes :/ --- BURRO EXPRESS - "When it absolutely doesn't have to be there overnight!"