- Culture - Nostalgia You Can Taste ## Compared To Its Competitors, The 2013 Shelby GT500 Was HP King. Then Came The Hellcat When the 2013 Shelby GT500 hit the streets, there wasn't much competition in the muscle-car realm. Sure, there was the 2012 Chevy Camaro ZL1, but its 580 horsepower was quite a bit less than the 662 ponies Ford's Special Vehicle Team (SVT) managed to squeeze out of the GT500's eight-pack. And the best the Dodge Challenger could muster at the time was 470 hp from its 6.4-liter V8. Clearly, the GT500 was the horsepower king of muscle cars in the early 2010s. But that…