I think that is what ours was. Black even. Ours was a salvage that we bought from my brother in law when he bought his new one.
My dream car as a kid was a Mach-1. However, I ended up driving a 1971 Limited Edition Roadrunner with hood pins, 440 and the roadrunner painted on the side as well. Sold it for 300$.
Bet it's worth a wee bit more these days.