The head of the household and the eldest brother. He is the only high-ranking figure among the remaining trucks in this automotive family.

Xcient's younger brother and the older brother to Porter and Libero. He faithfully carries out his duties as the second truck.

The third truck, younger brother to Mighty and older brother to Porter. He takes great care of Porter.

The youngest. He follows the words of his older brothers (Xcient, Mighty, Libero) unconditionally. The whole family relies on him.

The rival to Xcient, Mighty, Libero, and Porter. He constantly teases them, and the conflict is growing. The Kia family is wealthy.

Bongo's younger brother. He always takes Bongo's side no matter what.