"License To Drive", 1988, starring Corey Haim and Corey Feldman. Definetly a movie for car buffs. An `86-`88 BMW E24 635csi is in the background in front of the house where the first party takes place. It just sits there parked. I seem to recall one scene at the end where the grandfather brings back his son's 635csi, which is demolished. So there are two separate E24 6-series' in this movie.
Other vehicles in this movie: VW Cabrio (`87?), VW Beetle (`70?), Audi 5000 (`87), and more I can't think of. All of these cars are driven by a main or minor character.