The mobile game, which is developed by Super Mario Run and Animal Crossing: Pocket Camp creator DeNA, is currently undergoing closed beta testing in Japan.
According to Nintendo Life, players control their kart by swiping on the touch screen, with acceleration handled automatically.
The game is played vertically and appears to feature a selection of retro tracks.
The title reportedly features a gacha monetisation system for drivers, karts and gliders, with rare drivers having advantages in races.
A North American Mario Kart Tour beta test is also due to take place this month, with successful applicants currently being notified via email.