Ford Mustang GT Bullitt
One of the greatest barn finds (or stories about one, depending on what you believe) is the legend of a Bullitt Mustang. In 1968, the legendary actor Steve McQueen starred in this detective flick, playing a detective who drove a mean-looking 1968 GT390 Fastback. They used two cars during the shooting, but they destroyed one of them. They used the other for close-ups and promotional shoots. McQueen, a racing enthusiast, drove and modified it, preserving it for the future (via Car and Driver).
They later sold the surviving GT309 car. After several owners, it finally settled on the East Coast of the United States. For decades, only a few people knew of the car’s whereabouts. The owner refused to sell it, even to McQueen himself when he tracked down the vehicle in the late ’70s. Then in 2018, Ford made headlines when it convicted the son of the owner of taking the original 1968 GT390 Fastback out of hiding and showing the car in public next to the modern Bullitt Mustang.