Originally owned by Icon Pro Wrestler Bill Goldberg. The 2018 Dodge Challenger SRT Demon and 2023 Challenger SRT Demon 170 are both like-new. The black muscle cars have matching Vin's with just 10 and 9 miles on their odometers, respectively, and are being offered as a pair. The 808 hp Challenger SRT Demon was the most powerful muscle car ever until the Demon 170 came along with a 900 hp version of their shared 6.2-liter supercharged V8. Fill the latter up with 170-proof E85 fuel and it cranks out 1,025 hp.