Ppanels are from Wacky Races #2 (February 1971), pencils and inks by Jack Manning
If you answered Dick Dastardly, you're only partly right. Because the real answer: pretty much every one of them:
Is it any wonder that virtually every racer was booted out of the WASCAR (The Wacky Association for Seventies Cartoon Auto Racing) circuit for unsportsmanlike conduct, leaving only Penelope Pitstop? And you wondered why she left a lucrative racing career in order to be stalked around the world by Paul Lynde, right? Well, there you go: yet another Hanna-Barbera cartoon mystery finally solved by yours truly, Bully reminding you that cheaters never prosper!