This episode is inspired by true events. The same thing happened to Seinfeld writer Tom Gammill who was certain that he was driving Jon Voight's former vehicle. It's Gammill's real car, the Voightmobile, used throughout the episode. The actual Volvo George (Jason Alexander) almost buys belonged to his writing partner, Max Pross, who, in real life, never believed the LeBaron belonged to Voight. George and Jerry's (Jerry Seinfeld) arguments about this were directly taken from Pross and Gammill's own debates. Furthermore, the episode was conceived as a way to actually settle this argument once and for all. Incredibly, Voight agreed to do a cameo in the episode. When the writers finally asked him if he used to drive Gammill's LeBaron, he said he had never ever seen that car before in his life.
According to Andy Ackerman, Jon Voight did not tell Michael Richards (Kramer) that he was going to bite him, so Richards resistance and reaction to this action was completely real.
The final scene, with Jerry and Kramer on the bus, is an homage to the final scene of Midnight Cowboy (1969), in which Rico (Dustin Hoffman), who's dying, is comforted by his friend Joe Buck (Jon Voight) on a bus to Florida. The music from this scene, Harry Nilsson's "Everybody's Talkin" is also played, instead of the "Seinfeld" theme, and is even sung by George earlier in the episode.
Jerry's (Jerry Seinfeld) response of "I don't wanna be a cowboy!" to Kramer (Michael Richards) is part of a running joke & refers back to episode 5.2, The Puffy Shirt (1993), when Jerry says, "I don't wanna be a pirate!"
The song that Elaine identified as "Next Stop Pottersville" is actually "The Sliding Mr. Bones" by Malcolm Lockyer. In reality, there is no such song with the title "Next Stop Pottersville."