Yea...it's probably not a carolina dog.
A lot of people have seen pictures of carolina dogs and they are medium sized, yellowish dun color, etc etc. They see a generic mutt with the same basic look and label it carolina dog.
Truth is, many multi-generational mutts have that 'dingo look'...and many Carolina Dogs do not. Carolina Dogs are actually identified as something unique because of their unique behavior, things like 3 estrus cycles in quick succession, etc.
THIS is a Carolina Dog, verified by behavior traits and DNA profiles.
Too many people identify dog by appearance, and once they have that in their minds then find similarities in general dog behaviors etc. For instance many non-scientific sites on carolina dog go heavily into appearance but gloss over that many mutts all over the world have the same apeparance and not mentioning that many real Carolina Dogs deviate significantly from the appearance. They also cite behaviors like pounce-hunting small rodents in the same way foxes do. Guess what...wolves, coyotes, many feral dogs, and my dog all hunt rodents the same way. And my dog was a collie mix. Same with killing snakes with a whip-like motion, or digging dens. Lots of dogs that have spent a few generations feral will display these traits, and these kinds of traits pop up in purebred many generation pet dogs from time to time as well.