Found two more sources on who developed the game and who is running it:
This post by a Nintendo employee reveals that the game is currently run by Nintendo Smart Devices Division, while Mario Kart Tour was found among the games developed by SRD.
This, along with the list of the game's producer and directors, essentially confirms a tweet that claimed that Mario Kart Tour is developed by Nintendo and SRD (it should be noted that the directors both work for the EPD, hence the EPD claim even though there is now a specific division for mobile games):
Interesting detail: Kosuke Yabuki, the director of Mario Kart 8, is cited as "creative director" of Mario Kart Tour. Effectively, the file names and the Bandai Namco page indicate that the 3D assets come from the Mario Kart 8 team - after all, pretty much all of them can be easily ported to the next Mario Kart 7 based game, and it's likely that the next console Mario Kart game will be based on Mario Kart 7 as well.
This post by a Nintendo employee reveals that the game is currently run by Nintendo Smart Devices Division, while Mario Kart Tour was found among the games developed by SRD.
This, along with the list of the game's producer and directors, essentially confirms a tweet that claimed that Mario Kart Tour is developed by Nintendo and SRD (it should be noted that the directors both work for the EPD, hence the EPD claim even though there is now a specific division for mobile games):
Interesting detail: Kosuke Yabuki, the director of Mario Kart 8, is cited as "creative director" of Mario Kart Tour. Effectively, the file names and the Bandai Namco page indicate that the 3D assets come from the Mario Kart 8 team - after all, pretty much all of them can be easily ported to the next Mario Kart 7 based game, and it's likely that the next console Mario Kart game will be based on Mario Kart 7 as well.