Mario Kart Wii gets official US release date David March 12, 2008 18 Comments InfendoNintendo announced the official US release date for Mario Kart Wii. Start your (kart and cycle) engines on April 27th! Let the countdown begin!! (45 days…)Mario Kart WiiRelated Items Japan: Mario Kart Wii off to a good start, sells 594k in one week April 17, 2008Poll – Mario Kart Wii vs Brawl March 4, 2008NGamer: Mario Kart Wii as “nippy as can be” November 11, 2007