The Cars That Ate Paris

The small town of Paris, Australia deliberately causes car accidents, then sells/salvages all valuables from the wrecks as a means of economy.

The Cars That Ate Paris is a 1976 horror sci-fi movie directed by Peter Weir, starring Rick Scully, Terry Camilleri, John Meillon. It holds an IMDb rating of 5.6/10 from 4,938 votes and runs 1h 28m.