The other being what traditional Ford enthusiasts would consider acceptable. Powering the Shelby GT500 is a 5.8-liter supercharged V8 with 650 hp, 100-hp more than the 2012 model. It’s also backed by 600 lb-ft of torque and a top speed in excess of 200 mph, making it one of the most sought after and desirable Mustangs ever to hit the road.