Used Cars is a 1980 American satirical black comedy film co-written and directed by Robert Zemeckis. The story follows Rudy Russo (Kurt Russell), a devious salesman, working for affable, but monumentally unsuccessful used-car dealer Luke Fuchs (Jack Warden). Luke's principal rival, located directly across the street, is his more prosperous brother, Roy L. Fuchs (also played by Warden), who is scheming to take over Luke's lot. The film also stars Deborah Harmon and Gerrit Graham, and the supporting cast includes Frank McRae, David L. Lander, Michael McKean, Joe Flaherty, Al Lewis, Dub Taylor, Harry Northup, Dick Miller, and Betty Thomas.

Steven Spielberg and John Milius acted as executive producers on the project, while the original musical score was composed by Patrick Williams. Filmed primarily in Mesa, Arizona, the film was released on July 11, 1980.

Although not a box-office success at the time, it has since developed cult film status due to its dark, cynical humor and the Zemeckis style. It was marketed with the tagline, "Like new, great looking, and fully loaded with laughs." It was the only Zemeckis film to be rated R by the Motion Picture Association of America until Flight (2012).