The shot of the 1976 Renault 12 car that flew through the air was a special effects shot, rather fake, and was not a real vehicle, and has been said to more resemble a Mercedes W116.
Director Steno and actor Bud Spencer previously had collaborated on four "Flatfoot" film franchise movies in the 1970s. "Banana Joe" was their fifth and final theatrical feature film though the two later collaborated on a number of 1988 "Big Man" tele-movies.