There are a few secondary market Mustang upgrade companies but only a few have the credibility to be offered through a Ford Franchise dealership. The ROUSH prepared cars are arguably the best of breed. The Stage 3 cars are fitted with a massive Phase 1 Supercharger making a claimed 710 hp (feels underrated to me) and over 600 lb ft of torque. A combination that blends the GT500 performance numbers into a topless variant. The convertible "Style Bar" option is a visual addition that always screams, "this car is more capable than a stock one". If the sound of this monster doesn't get you excited then the perfect visual additions are sure to raise your heart rate. The optional forged wheels show off the GT Performance package BREMBO brakes off very nicely. But you want a car like this to be more than just fast. At this price range we need some comfort as well, right? Heated and Cooled seats, AppleCarPlay, touchscreen Navigation, adjustable exhaust and steering inputs, Blind Spot with cross traffic alert, all the creature comforts you would expect in a $81,449.00 MSRP Stage 3!