Hanna-Barbera worked hard to find new things for their cash cow Scooby-Doo to do, and that explains this silly 1980's full-length animated film. Shaggy, Scooby-Doo, Scrappy-Doo, and Shaggy's girlfriend Googie race cars in auto races. A group of monsters meet in Transylvania for the Monster Road Race, and must replace the now retired werewolf. Luckily, the moon is right to create a new werewolf in the form of Shaggy. Count Dracula sends a duo known as the Hunch Bunch to change Shaggy into a werewolf, and they kidnap him and his friends back to Transylvania to drive in the race. As the werewolfed... continuar a ler.