In today's ep they did a gag of Wacky Races as a Mad Max type movie. Well some years ago DC Comics launched a comic book initiative called Hanna-Barbera Beyond were they did mature reboots of IPs like Scooby, Johnny Quest, etc.
Anyways, they did one of Wacky Races as a Mad Max like story and it was pretty good. Anyways, that was my first thought when I saw that gag.
https://en.m.wikipedia.org/wiki/Wacky_Raceland