Jon, the Mach 1 is just a body package, like the Cobra II. However, there are things about the Mach 1, that actually make it "more special" in a way, than even a Cobra II. The Mach 1 has it's own body code, whereas the Cobra were just 2+2s. You could make a 2+2 into a Cobra and if you removed the buck tag, nobody could ever dispute it. But the Mach 1 having it's own body code, could never be argued if it was true. Also, the Mach 1 came standard with the V6, where all the other models, including the Cobra, had the 4 cylinder as the standard motor (well aside from the King Cobras). I don't know ALL the attributes on the Mach 1, but the main things were the black rocker paint job, Mach 1 badging, and a host of "standard" trim stuff that was optional on all other cars.