Mario Kart Tour delayed to summer 2019 - Polygon

Mario Kart Tour, Nintendo’s next smartphone game, will launch sometime this summer. Originally planned to make it to Android and iOS by March 31, the mobile version of Mario Kart requires extra development time, according to Nintendo.

The Summer Tour begins in the Mario Kart Tour game

Mario Kart mobile delayed until summer 2019 - BBC News

Action count targets for week 2 Credit to @mktacrbot : r/MarioKartTour

Mario Kart Tour Delayed Until Summer 2019 To Improve Quality

News - December, 2021

Platform Magazine - Best of 2021/22 Edition by Platform Magazine NTU - Issuu

Mario Kart Tour has been delayed

Mario Kart Tour - Tokyo Tour Trailer, several new tracks and characters confirmed

Mario Kart Tour - For part two of the Snow Tour, Peach (Wintertime) and Wario (Hiker) make a comeback in Mario Kart Tour. They're dressed warm for the occasion!