IGN gives Mario Kart Wii 8.5.

[Untouch]

pichu_pichu said:
wow, they really gave the sound a low score, but the rest I think is fair, or somewhat fair, 8.5 is sort of what I expected

 Every time mario powerslides or jumps off the ramp he goes  "WHEEEEEEEEEEEEEEEEEEEEEEE" I think that's where it lost some marks.