Mario Kart needs this!

[PAOerfulone]

Honestly... Then it wouldn't be Mario Kart anymore, it'd just be another Nintendo crossover, which I feel would take away from the appeal and impact of Smash Bros. Can't have that.

Besides their are SOOOOO many other Mario characters they haven't even used yet.
Like Peter Piranha, the Lumas, Professor E. Gadd, Mouser, how about some RPG characters like Starlow, Prince Dreambert, or Geno, if we can't have him in Smash Bros, than at the very least Mario Kart would be really cool. Or how about the Piantas from Sunshine?
-Magikoopa
Since DK and Yoshi are in it, and even though they have their own franchises, at their core, they're still technically in the same universe, so how about more characters from them. Like Diddy, Dixie, Cranky, or even Funky Kong. Or maybe some WarioWare characters like Ashley or Jimmy T. since the Wario franchise is really a spinoff of Mario.
Speaking of Mario spinoffs, let's bring in the ghosts of Luigi's Mansion as playable characters.

There is literally an infinite population of characters within the Mario Universe that they can use as playable racers in Mario Kart before resorting to other franchises that are from different universes, like Metroid or Pokemon.
-Having Animal Crossing characters and Link in MK8 is really stepping on the line as far as keeping it "Mario Kart" is concerned. They might as well rename it Nintendo Kart.
Donkey Kong, Yoshi, and Wario are at least in the same universe and can even be considered spinoffs of Mario....Very, very successful spinoffs, but spinoffs nonetheless.