Find movie about two women questioned by police who get off and leave in a Volkswagen. They are quilty, but one is a smooth talker and cons the police. They are quite happy as they leave in volkswagen. Bruce willis in not in movie.

I don't recall the car at the end, but one possibility is "The Rich Man's Wife" (1996) starring Halle Berry. The Rich Man's Wife (1996) - IMDb (http://www.imdb.com/title/tt0117473/)