The Car

The Car was the titular antagonist of a 1977 horror film of the same name, which was sold as "Jaws with a car" - it has similarities with the Stephen King novel and film Christine.

The Car in question is a demonic modified 1971 Lincoln Continental Mark III that is strongly suggested to be either the Devil or some other demon, with no visible driver The Car existed to destroy and like many horror antagonists was almost completely unstoppable despite the heroes' best efforts to defeat it.