The seller bought this 1969 Ford Mustang Mach 1 on Bring a Trailer in January 2024 for $74,000. A year later, it sold for $60,500. That’s a whole Mustang’s worth of depreciation.

News broke last year that Ford CEO Jim Farley had revealed to the company’s dealers a four-door version of the Mustang that was tentatively called the Mach 4 and under considera ...