Speed Buggy, looked like a Scooby Doo rip off, but was actually rewritten Josie and the Pussycats scripts

 The show was so successful that it aired on all three major networks.

Although closely patterned after the meddling kids characters of Scooby-Doo, some Speed Buggy episodes were actually reworkings of Josie and the Pussycats storylines

Found on https://www.facebook.com/That70sPage?fref=photo