Does anyone here ever remember such a model? I seem to recall Mach II's in Los Angeles area dealer showrooms, probably a 1971 model.
I also recall a magazine article about it, mentioning that the only difference between the Mach I and Mach II was a standard luxury package (power everthing, and maybe cruise control) on the Mach II.
Maybe it was just a Los Angeles area thing, similar to the "Blackbird" edition of the (2001/2002?) Pontiac TransAm that was made for a single dealer in Florida.