Ford is taking the horsepower war between muscle cars to a nuclear level with the 2013 Shelby GT500. They first announced the car will have 650 hp, so we were counting on like 600 or 620, given Shelby’s history of rounding things up. But now they announced the SAE certified output of the GT500, and it’s 662 horsepower and 631 lb.-ft. of torque. Unbelievable.

So the new GT500 makes more power than the company claimed it would. Who the hell Shelby think they are? BMW?!

This makes the  all-new supercharged 5.8-liter powerplant – with the new TVS 2.3-liter supercharger, twin overhead camshafts and four valves per cylinder –  in the 2013 Ford Shelby GT500 not only the most powerful V8 engine in the world, but also one of the most most fuel-efficient vehicle in its segment. The car has like 80 hp more than the Camaro ZL1, but it’s 5 mpg more fuel efficient.

The GT500 has an EPA-estimated 15 mpg city, 24 mpg highway and 18 mpg combined. That means it’s exempt from the gas guzzler tax. It’s like Shelby saying to Camaro ZL1 get back in the line, know your place.

All that said, we have to see these two cars in a proper head 2 head challenge. The Shelby might be powerful, but don’t forget sometimes absolute power does corrupt absolutely.