Duel movie trivia:
The TV movie Duel used the first truck – a 1955 Peterbilt 351 with a Cat engine. While filming, the truck’s engine began to give the crew problems so another truck was purchased
– the 1960 351 Peterbilt, which belongs to Brad Wike. This was used when they decided to make the TV movie into a full-length film.
They applied make-up to the truck during filming to make it appear uglier.
Steven Spielberg held truck auditions and chose the 1955 Peterbilt because the long hood, split windshield, and round headlights gave it more of a menacing face.
The movie was based on a book written by Richard Matheson. In real life, he’d been tailgated by a truck on the day President John Kennedy was assassinated and that inspired the story.