One of the most complex early anime series to be dubbed for American audiences. Speed Racer is the teenaged son of a car designer, whose Mach 5 can jump, go underwater, clear a path of trees and do other tricks. Besides winning various races, Speed and his family (girlfriend Trixie, kid brother Spritle and pet monkey Chim-Chim) run into spies, saboteurs, criminals and other bad-guy types.
What raises the show above simple adventure is the family background. Speed's brother Rex, suffering dishonor and shame, adopts the identity of Racer X, secretly aiding his brother and goading him into becoming the world's best racer. The series has its dark moments, and the use of gunfire and explosives kept it off American TV for years ("too violent for kids").
The show is far better than the 1994 version, a simple licensing of the character for a "kid-friendly" racing show. However, a new anime version (under the Japanese title "Mach A Go Go") has been made; it may surface in a well-dubbed English version in a few years.