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.

Nintendo announces cancellation of 'Nintendo Live 2024 TOKYO' and postponement of 'Splatoon Koshien 2023 National Finals', widely reported overseas - GIGAZINE

News - January, 2019

Super Mario (franchise) - Super Mario Wiki, the Mario encyclopedia

News - June, 2019

News - May, 2023

Mario Kart mobile delayed until summer 2019 - BBC News

Mario Kart Tour mobile game delayed to Summer 2019

Mario Kart Tour delayed until Summer 2019 – Main Menu Games – Video Game News, Reviews, and More

The next Tour in Mario Kart Tour is the Sunshine Tour! GBA Lakeside Park makes It's grand return after over 22 years, starting July 26th! : r/newmariokart

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!

Game News Roundup: February 2023 – The Avocado

Mario Kart Tour' is a Very Free to Play, Stripped Down Version of 'Mario Kart' Proper – GameUP24

Release of Mario Kart Tour delayed to summer 2019 - GamerBraves

Mario Kart Tour delayed until Summer 2019 – Main Menu Games – Video Game News, Reviews, and More