Although we have yet to see the new Dodge Challenger SRT Demon in the flesh, we already know many things about it. For starters, we know that it will be one heck of a muscle car. We know it will be the most powerful, factory-built muscle car, as well as the quickest from 0 to 60 mph. We also know it will be RWD and that it will have a few unique features inside and out. It’s also safe to assume that it will be powered by the same supercharged, 6.2-liter V-8 found in the Hellcat. However, there’s no word as to how much horsepower it will have. This mystery was seemingly solved today by a picture posted on Instagram.