Dodge Challenger: the Fastest Muscle Car Ever! Posted on July 13, 2014 by Darren Connolly 707 horsepower can’t be ignored. Find more info at Allpar. Video after the jump! Related posts: Watch a Challenger SRT8 Spank a McLaren MP4-12C Gratuitous Hellcat Burnout and 1/4 Mile Run Challenger Hellcat Runs in the 10s Hot Car, Fast Woman