710HP 2019 Roush Stage 3 Mustang - One Take

The new 2019 Roush Stage 3 Mustang is an alternative to the Factory Shelby’s, based on the 2019 GT. With a 710 HP supercharged engine, coil-over suspension, and beefed up half shafts to hold the power, is it a Hellcat competitor? Roush provided the vehicle and insurance for this review.