The 2015 Dodge Challenger SRT with its supercharged 6.2-liter HEMI Hellcat engine produces 707 horsepower and 650 ft.-lb. of torque, which makes it the most powerful muscle car ever produced, according to Chrysler.
2015 Dodge Challenger Hellcat Offers Chrysler's Most Powerful V-8 Ever
Dodge has provided more details about the redesigned Challenger for 2015, including its Hellcat engine for the SRT lineup that will produce more than 600 horsepower.