Is this the rarest Boss? An all-aluminum Can-Am 429ci. Tasca Ford owned the street with this car. Bring on Hemis and SS 396 Camaros. As one of six pre-production 1969 Ford Mustang Boss 429s ...

Delivered originally to Henderson Ford of Ann Arbor, Michigan, this Boss 429 was reportedly fitted with a replacement engine block (it’s probably why the bidding didn’t go on for longer), and ...