That 100x zoom looks a bit... sloppy...
The car has one wing mirror and the rear tire is wider than the front. Edit: this might be real, see child comments.
Is there someone who knows more about cars who can confirm that this is in fact, not real?
If you look at some 65 mustangs they only had a driver side wing mirror as that was the law back then. The wider rear tire also makes a lot of sense, as it's a RWD car that needs wider rear tires to support the traction.
If the car in the photo is a 65 mustang, I think the AI did pretty good.
That said, as other commentators have mentioned, it might also be wider in real life, so not necessarily an artifact at all.