A car that was powered by a power unit. A power unit was the type of machine that Julius Erwin used to power the engine of his famous car, a car that ran on water rather than gasoline. Whenever the power unit was contaminated by saltwater, or even if it was in the vicinity of salt water, it would cause it to reverse polarity and blow up like an atomic bomb. References ↑ As seen in The Pest (1977). ↑ As seen in The Pest (1977). External Link Power unit at Wikipedia Retrieved from "https://superfriends.fandom.com/wiki/Power_unit?oldid=66387" Categories: Technology Community content is available under CC-BY-SA unless otherwise noted.