If all the postings suddenly disappear and get trashed it could be real, I'd imagine GM wanting to cover it up since they haven't revealed the Camaro yet.
If not it could still be legit, but it's also possible it's only a prototype that they didn't go with. Which would make it even cooler, I'd want to buy them just to build a prototype
Example of not so cool prototypes... and then other prototypes I actually liked