Six hundred horses. That's what you're going to get when you turn the key and step on the gas of your new 2015 Dodge Challenger SRT Hellcat, which the carmaker has just officially unveiled. If you haven't already guessed, this is the most powerful car to ever wear the Challenge name, thanks to its 6.2-liter Hemi V8, which sends power through a six-speed manual or eight-speed auto. Unfortunately, specific specs and timing details aren't available yet, but there are plenty of other bells and whistles to be had inside, including the fact that there are two keys: a red one that unlocks the car's full power and a black on that is essentially for valet use, limiting the supercharged car's potential. Leather and technology adorns the interior along with a SUPERCHARGED badge on the Challenger's fenders. Production begins later this year with pricing and availability information to come.