Could it be the taillight shape just with more vertical bars than only one seen here? I thought someone commented that they thought they could see the taillight shape angling inward toward the middle but maybe I just dreamed that up.
It could just be the camo, but does the hood appear to have a raised crease in the middle similar to the 69/70 Mustangs? Whatevr it is It seems consistent across all of them sitting there.