"Scenes From the Class Struggle in Springfield"
Season 7, Episode 14

Mr. Burns doesn't play around with his fashions, and that includes when he's rolling around in the whip. This old-timey driving outfit is quite possibly the only thing that could have upstaged Marge's stunning Chanel dress, and gives him the status to command Marge to, "Fill it up with petroleum distillate, and revulcanize [his] tires, post-haste!"