Jetsetter

The Jetsetter (known as the Aero Glider in British English, or a Speeder in Mario Kart Tour) is a kart that appears in the Mario Kart series, debuting in Mario Kart Wii. It resembles a late 90's racecar (the  in particular) and the body has a similar design to the Streamliner, but has more of a rectangular shape as opposed to the Streamliner's wedge-shaped body. The Sprinter (its rough equivalent in middle-sized vehicles) is also very similar to the Jetsetter in shape, though the Sprinter is more clearly modeled on Formula 1 racecars. The Jetsetter features a three-pointed nose with the middle point shorter and thicker. It has blue wheels, a rear fin and a single dual exhaust port in the back. The emblem is located on the hood and sides of the kart.

Mario Kart Wii
The Jetsetter, or Aero Glider, is a large Speed-type kart. The kart is unlocked by receiving a one star rank or better in all 150cc Retro Cups or by playing 4,500 races.

The Jetsetter is the fastest vehicle in the game. It also has decent weight, but is actually the lightest large kart in the game. However, all of the Jetsetter's other stats are severely low; it is notable in that it has the worst handling, off-road, and Mini-Turbo stats in the game, as well as the lowest stat total of all vehicles overall with 222 stat points. It also has the third worst drift among the karts, behind the Super Blooper and Offroader. Visibly, it has the same acceleration as the Wild Wing, though internal data shows the two having mixed stats in acceleration.

Additionally, Funky Kong's Jetsetter has the best speed stat in the game, but still has the lowest stat total out of any character-vehicle combination in the game, with 229 stat points (one stat point below the Spear's default stat total, which is 230 stat points). Unless someone with an off-road bonus drives the Jetsetter, it will be incapable of drifting on any type of off-road terrain. If Waluigi uses it, its acceleration stat will become that of the Sprinter and Honeycoupe, and its drift stat will become that of the Magikruiser and Daytripper.

The Spear, Sprinter, and Blue Falcon share similar stat distributions with the Jetsetter.

Mario Kart Tour
The Jetsetter appears in Mario Kart Tour starting from the Battle Tour. Several color variations of it are released, all referred to by the game as  Speeder variants, being the first kart that originally debuted in a prior Mario Kart game to receive a brand new name in Mario Kart Tour. They are all equipped with color variants of the Slick tires from Mario Kart 8 and Mario Kart 8 Deluxe, and they are classified as High-End karts.

Trivia

 * The Jetsetter is the only vehicle in Mario Kart Wii to have a stat higher than 67 without stat bonuses (its speed is 69).

Protoracer Sterngleiter