The Bullitt Mustang Changed Locations
Although it wasn’t driven since it was parked in 1980, the original Bullitt Mustang changed a few locations since the Kiernan family moved from New Jersey to Cincinnati. They then moved on to Kentucky, Florida, and finally Nashville. The car sometimes stayed with friends. But it was always hidden away from private investigators and people who wanted to buy it (via Hagerty).
Interestingly, every once in a while, the Kiernan family got a message from somebody who had tracked the car and was willing to make an offer. However, the family was reluctant to show the car, publish photos or publicly show the car until 2018.