This vehicle uses the "Scene Machines" truck casting, originally designed by Larry Wood. The theme is based on a motocross racing support team.
It was released in 1979 as part of the "Scene Machines" series. Model 2853 with Blackwall (BW) wheels is from that release.
The "Scene Machines" were unique because the rear of the truck was a hollow box with a small lens. A film strip could be inserted, and when you held the truck up to a light source, you could view cartoon scenes through a peephole in the roof. This version was themed for motocross and came with a corresponding film strip.
This is a specific version of the "Scene Machines" casting. Other versions had different themes, such as space, superheroes, or movie scenes.
The main variation is the film strip that came with the truck. The truck itself was typically a single color scheme for each theme.