Kart

Karts are seen in CTR and CNK. In CTR, each character has a specific color for their kart. For instance, Tiny is green.

In CNK, they are blue for Team Bandicoot, red for Team Cortex, green for Team Trance and yellow for Team Oxide. They are like basic go-karts, except that they are faster and can fire different weapons like missiles or bombs.

Appearances
The vehicle first appeared in Crash Team Racing which is the first Crash Bandicoot game to have racing in the series which the second game goes to Crash Nitro Kart and the other two goes to Crash Nitro Kart 2 (Java) and Crash Nitro Kart 3D including CNK 2.

They were somehow not used in the Crash Tag Team Racing game which the characters (only six) have three vehicles each for their missions during the game with the eight colours from CTR.

Kart Drivers and their Colors
In Crash Team Racing are the main colors for the karts:
 * Pink for Coco Bandicoot
 * Blue for Crash Bandicoot
 * Olive for Dingodile
 * Purple for Doctor N. Gin
 * Sky Light Blue for Doctor Nefarious Tropy
 * Red for Doctor Neo Cortex
 * Grey for Fake Crash
 * Brown for Komodo Joe
 * Dark Green for Nitros Oxide
 * Yellow for Papu Papu
 * White for Penta Penguin
 * Black for Pinstripe Potoroo
 * Cyan for Polar
 * Indigo for Pura
 * Orange for Ripper Roo
 * Green for Tiny Tiger

In Crash Nitro Kart are the teams and their colors:

 Team Bandicoot - Blue   Team Cortex - Red   Team Oxide - Yellow   Team Trance - Green   Team Velo - Purple 
 * Coco Bandicoot
 * Crash Bandicoot
 * Crunch Bandicoot
 * Fake Crash
 * Doctor .N. Gin
 * Doctor Nefarious Tropy
 * Doctor Neo Cortex
 * Tiny Tiger
 * Nitros Oxide
 * Real Velo
 * Zam
 * Zem
 * N.Trance
 * Dingodile
 * Polar the Bear
 * Pura the Tiger
 * Spyro the Dragon
 * Emperor Velo
 * Geary the Robot
 * Krunk
 * Nash
 * Norm

In CTTR, while the karts are replaced by cars, the eight colors for the characters are:
 * Orange for Crash Bandicoot
 * Yellow for Doctor Neo Cortex
 * Purple for Pasadena O' Possum
 * Red for Crunch Bandicoot
 * Pink for Coco Bandicoot
 * Sky Light Blue for Nina Cortex
 * Grey for Doctor .N. Gin
 * Green for Ebenzer Von Clutch