Tinker builds a dune buggy with a mind of it's own to help him win races. He, and his friends take the buggy to such events only to be caught up in mysterious capers.
Mark - Tinker's best friend, a Native American.
Speed Buggy - An anthromorphic fiberglass dune buggy built by Tinker.
Tinker - Speed Buggy's driver, builder, and mechanic.
Guest Appearances, and CrossoversEdit
The cast appears in "The Wierd Winds of Winona" episode of The New Scooby-Doo Movies. This is the only time Mark, a Native American, is shown in a darker skin tone.
The cast would latter show up in a dream of Scooby-Doos' in the Scooby-Doo Mystery Incorporated episode "Mystery Solvers Club State Final". In this dream sequence the Scooby-Doo gang is kidnapped leaving Scooby, Speed Buggy, Jabberjaw, Captain Caveman, and The Funky Phantom to solve the mystery.