Which one to buy?

OH EM GEE, did you have remind be about Duel? From Wikipedia: "stars Dennis Weaver, who plays a terrified motorist stalked on a remote and lonely road by the unseen driver of a mysterious tanker truck."

Right up there with Psycho and The Birds in scaring the bejeebers out of me, regarding everyday activities - like driving through the mountains in a Valiant. The Valiant in the movie was actually a '71 Signet but you're right, my new old car is eerily similar.