Summer Tour (2023)

The Summer Tour was the hundred-and-third tour of Mario Kart Tour, which began on August 23, 2023 and ended on September 6, 2023. This tour introduced a new city course based on Madrid, called Madrid Drive. With this tour's introduction, a tour named after every season has been held during the game's fourth year, following the Autumn Tour in 2022 and the Winter Tour and Spring Tour earlier in 2023.

The tour also introduced a purple variant of the Pit Crew Toad and a new outfit for Mario based on his black and blue suit from Super Mario Odyssey, making this the first tour since the Anniversary Tour to introduce a new costume for Mario and marking the final instance of Charles Martinet providing a new voice line for Mario in the Super Mario franchise due to his retirement from voicing characters in the franchise. Additionally, many sport-themed vehicle parts were introduced in this tour, relating to baseball and golf.

This tour concluded the Summertime Celebration, which began in the Sunshine Tour.

This was the first tour to introduce a Super driver with the Giga Bob-omb special item, being Purple Toad (Pit Crew); as well as the first to add favorite courses to Peachette, Pauline, Peach (Kimono), the Poison Apple Kart, and the Star-Spangled Glider since the Peach Tour, 2022 Autumn Tour, 2023 New Year's Tour, and Rosalina Tour, respectively.

The Coin Rush course for this tour was Madrid Drive. The menu's background featured the as the tour's landmark.

An in-game announcement titled "About Upcoming Scheduled Tours" was added to the internal data during this tour. This announcement was later published during the 2023 Sundae Tour.

Poochy appeared on the course icon for Berlin Byways R/T despite not being obtainable in this tour.

Daily Spotlight
The Daily Spotlight contains a mixture of items themed around the tour, items that have ranked tracks as favorites, and gold items. The rates listed are specific for that type of item; drivers, karts, and gliders are selected separately. Items marked with an asterisk (*) do not appear in the Daily Spotlight during the week they are available as Spotlight Shop banner items.

Today's Challenge
Players' most recently used kart and glider are chosen, and favorite and favored ones have extra priority. Opponents are arranged randomly. On day 1 of this tour, players finish a race in Paris Promenade 3T in the Mii Cup using the Orange Mii Racing Suit for a free pipe launch. Starting from day 2, players have to finish a race in the earliest incomplete course that is not in any of the ranked cups using the driver shown on the course's thumbnail every day to obtain the corresponding reward in the table below. Once all of the courses are completed, the courses are selected at random.

Rewards
Gold cells indicate rewards that are exclusive to Gold Pass members.

Gold Pipe
Gold Pipes, including the All-Clear Pipe, randomly shoot out one of the following regular High-End items. The appearance rates can be viewed via the "Pipe content" link on the Gold Pass purchase screen.

Token Shop
The limited-time event where event tokens appear began on August 22, 2023 and ended on September 5, 2023. Event tokens could be earned by causing opponents to crash.

Tier Shop
The shop features a variety of set and randomized items available for purchase. The item slots in the shop are unlocked based on the highest tier of players.