The Mercedes-AMG One is arguably the coolest car the German company has announced in recent decades. But it’s also one of those unicorn supercars that we know it’s coming, but there’s no specific timeline for it. It’s spectacular and frustrating at the same time. But come October 2020, and someone finally unearthed new data about the hypercar. According to the most recent rumor, AMG engineers have tuned the V-6 hybrid powerplant to develop more than 1,200 horsepower. And that’s massive news because it’s a significant step up from the initial 1,039-horsepower claim.