No one!
Beat the mushroom cup on 150cc
If you need to unlock her in Mario kart wii here is the answer: Win the 150cc Special Cup. If you need to unlock her in Mario Kart 7 here is the answer: Win the 150cc Mushroom Cup. Source: I beat Mario Kart Wii, and I unlock Daisy in Mario Kart 7.
Get first place in most of the races.
you do it
In Mario kart wii you have to win the 150cc special cup
you get first in the 150cc leaf cup
To unlock Dry Bowser in Mario Kart Wii, you must win the 150cc Mushroom Cup, Flower Cup, Star Cup, and Special Cup with a ranking of at least one star on each.
you win 150cc Special cup
just win 150cc
150cc flower cup
To unlock the quaker you have to win 150cc star cup
win 150cc in the lightning cup, and leaf cup.