A Bodies in movies and on TV

I'll have to do some searching to find the clip, but there's a scene in Highlander (one of my favorite movies) where the Kurgan stabs the marine in an alley and flees. He carjacks an oldsmobile (I think) driven by an old couple, but when the scene cuts and the car comes around the corner of the alley the car he is in is a 71 or 72 Duster.