A raunchy, hilarious, anything-goes comedy from Bob Gale and Robert Zemeckis, five years before they hit pay dirt with Back To The Future. Kurt Russell plays Rudy Russo, the stereotypical used car salesman - loud clothes, sleazy demeanor, whose main ambition is to get into politics. Jack Warden plays two roles here, as dueling brothers, both who own used car lots across from one another. Also starring Gerrit Graham, Frank McRae, Deborah Harmon, and David L. Lander and Michael McKean. (Their bit leads to the film's funniest sequence. Rated R for language, sexual situations, nudity and general raunch.
Nit
The Edsel seen in the film's opening (perched atop the dealership sign) is a 1958 model. However, when we see (allegedly) the same car go to its doom (boo hoo) later in the film, a 1959 Edsel is used.

Actually, the film was on HBO recently, and I think it was the other way around - a '59 Edsel was atop the sign, and it was a '58 that was destroyed.

The Museum of Modern Art (MOMA) in New York City is in the middle of a Robert Zemeckis retrospective. Which includes a showing of this film; the web page is here. One nitpick on that - The paragraph begins with the phrase "It’s morning in Ronald Reagan’s America...". But, this movie was produced in late 1979 and released in July of 1980. Jimmy Carter was President then. Reagan wasn't elected intil November 1980, and took office on January 20, 1981.

Jimmy Carter was President then.
And, Carter makes an "appearance" in the film. Which is part of the movie's funniest bit. The tech geeks (played by "Lenny" and "Squiggy", Michael McKean and David L. Lander) want to interrupt a Presidential speech for a used car commercial. They say that the speech will begin at 9 p.m. "our (Arizona) time" Most Presidential speeches of that era began at 9 p.m. Eastern time. Which would be 7 p.m. Arizona (Mountain) time.