Riff Raff and the Catillac Cats take up off-road auto racing in this episode. Riffy decides to enter when he learns his girlfriend, Cleo, kisses the winner. Gee, y'think maybe this is also a bit of a homage to Wacky Races?
Funny thing. Actor Stan Jones, better known as the voice of Lex Luthor to fans of the Super Friends franchise, voices both Riff Raff and Wordsworth, the latter voice seemingly a mimic of certain of Howard Morris' characters (i.e. Mayor McCheese). Like, who knew?