2015 Dodge Challenger SRT Hellcat debuted two months ago, showing off its great new engine – the supercharged 6.2-liter HEMI Hellcat. The unit produces an unprecedented 707 horsepower (520 kW) and 650 lb.-ft. (480 lb-ft) of torque. These figures make the Challenger the most powerful muscle car that Dodge has ever built. In fact, it makes it the most powerful muscle car ever.
For the first time in Chrysler Group history, the 2015 Dodge Challenger SRT Hellcat comes standard with two key fobs – red and black. The red key fob is the only key that can unlock the full 707 horsepower and torque potential of the powerplant, while the black key fob limits the driver to a reduced engine output of 500 horsepower (368 kW).