"From Dyno to Auction: Exploring the Legacy of Ford GT Engines"
A rare 2011 Shelby GT500 with a glass roof option and approximately 83,000 miles on the clock underwent a dyno test to assess its engine's power. Despite some modifications including a cold air intake system, heat exchanger, and exhaust system, the car produced 508 horsepower at the wheels, indicating a peak output of around 584 horsepower at the flywheel. With 484 lb-ft of torque at the wheels, the engine appears to be in good condition considering the mileage and minor tweaks.