Hagerty.com

McQueen’s Bullitt could be the most expensive Mustang ever sold at auction

I hope the car stays in the US… And like that other guy said, I hope it doesn’t go overseas😳

I only mentioned RM as they did a good job with the Nick Alexander collection of Ford station wagons. The Bullitt movie car is not a muscle car but rather a desirable movie prop as are other movie items that were used by notable Hollywood entertainers. As one respondent wrote it is just a '68 fastback that is not a rare car, so I would surmise that it is for the move attachment not so much the car that will bring the buyers. I doubt it will be driven but rather kept by someone for bragging rights.
At any rate the auction will be entertaining to say the least.