I dunno, but I wish they had chosen live races over "who can beat the stage fastest if we change....THIS?".
Also, unlocking shit seems to be random. I replayed one of the 100cc cups to get a star rank, and ended up unlocking Baby Luigi and Funky Kong (lolwut).
I like Daisy the best, because she's so goshdarn annoying. Lack of "HII'MDAISY" makes me a sad panda.