Roush announces 2012 Stage 3 Mustang with 540 horsepower

The Stage 3 has always been the flagship of Roush's modified Ford Mustang stable, and the supercharged pony car is making a return for 2012 with a new RS3 moniker. With 540 horsepower and 465 pound-feet of torque on tap, the Stage 3 replaces the 5XR as Roush's most powerful offering.

Along with the extra power, the RS3 comes with a new graphics package that is available in six stripe colors and six accent colors, making for 288 color combinations. You can use Roush's new online configurator to see what colors like Luminescent Lime and Red-Blooded American look on the car and add optional items like the 20-inch Hyper Black wheels and rear three-quarter window louvers. The 2012 RS3 Mustang starts at $59,945 and comes standard with a 3-year/36,000 mile warranty. PR and full details after the jump.