"The Smelly Car" is the 61st episode of the sitcom Seinfeld. The episode is the 20th episode of the fourth season. It aired on April 15, 1993. In this episode, the body odor left by a restaurant valet in Jerry's car further transfers itself to Jerry and Elaine, and seems to be irremovable. Meanwhile, George learns that his ex-girlfriend Susan has converted to lesbianism, and Kramer successfully seduces Susan's girlfriend.