Gimme a Break! (1981)

Season 5: Episode 10

Nell finds out Addy is selling her car, and wants to be the first one to take it off her hands. However, Angies sister has already purchased it, and Nell talks her out of it. When Nell takes it for a test drive, it breaks down, and she tells Addy that she wants her money back. Addy refuses, but in the end gives in, after she finds out that she is getting money back as well for it.