2018 Dodge Challenger SRT Demon (840-HP) Specs, Design, Driving. The new 2018 Dodge Challenger SRT Demon is the world’s first production car to lift the front wheels at launch. It set the world record for longest wheelie from a standing start by a production car at 2.92 feet, certified by Guinness World Records.
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The heart of the Challenger SRT Demon is the supercharged 6.2-liter HEMI Demon V8, rated at 840 horsepower and 770 pounds-feet of torque. The red-painted Demon engine has been certified to the SAE J1349 industry standard for its horsepower and torque ratings. The engine also meets all applicable legal emissions regulations.