Yes, I also saw the reference to the Super Stock moniker in another forum. Did you by chance see it in a news article.

If so by all means, please post it. Based on the Super Stock having a bigger motor and having a hood scoop, I am not sure
there is a difference between the definition of Super Stock and Super Sport for purposes of the new Challenger.

"The Super Sport package has typically included high-performance tires, heavy-duty suspension, and increased power, along with a variety of other performance and appearance upgrades."