Speed Racer, also known as Mach Go Go Go, is a Japanese anime/manga franchise about automobile racing. Mach GoGoGo was originally serialized in print form in Shueisha's 1958 Shonen Book, and was released in tankobon book form by Sun Wide Comics, re-released in Japan by Fusosha. From 1967 to 1968 it ran as a television series in the United States, with 52 episodes. Selected chapters of the manga were released by NOW Comics in the 1990s under the title Speed Racer Classics, later released by the DC Comics division, Wildstorm Productions under the title Speed Racer: The Original Manga. In 2008, under its Americanized title, Speed Racer, Mach GoGoGo was republished in its entirety in the United States by Digital Manga Publishing and was released as a box set to commemorate the franchise's 40th anniversary and to serve as a tie-in with the 2008 film. It was published under the title Speed Racer: Mach Go Go Go under the company's DMP Platinum imprint. The television series itself is an early example of an anime becoming a successful franchise in the United States, spawning multiple spinoffs in both print and broadcast media.
What's it worth? Take a look at this Mach Go Go Go price guide: sold listings for a value indication.