TheSmokingTire – 670HP 2016 Roush Stage 3 Mustang – Video

 

The Roush Stage 3 is the anti-Shelby. Making 670 Horsepower from its supercharged Coyote V8, it’s a brute in a straight line, with beefed up axles and a roll cage, and while it’s decent in the corners, it’s missing the fine tweaks that add up to a lot in the Shelby.