This was a cheesy adaptation of a Stephen King novella by the same name. And it’s not even a '59 Plymouth, it’s a '60.
…that is, until the crash scene. For whatever reason, the filmmakers glommed the rear end of a '59 Plymouth to a '60 for that scene. Go figure!
Look at those '59 fins and taillights!
A gruesome scene, but another good look at the fins