Ford Mustang Shelby GT500 vs Corvette z06 C5

A 500-horsepower Shelby GT500 and a naturally aspirated Corvette Z06 look like a mismatch on paper, but horsepower doesn’t tell the whole story. The GT500’s supercharged 5.4L and Tremec six-speed put up serious numbers, while the C5 Z06’s featherweight 3,118-pound curb weight keeps this fight closer than the spec sheet suggests – and sometimes closer in the Corvette’s favor. It’s a real-world lesson in why power-to-weight beats raw horsepower.

“Drag Racing!!” was the entire pitch for this matchup when it first ran – no numbers, no story, just two nameplates thrown together and left to speak for themselves. Fair enough, because on paper this looks like one of the more lopsided fights you could stage: a factory-supercharged Mustang against a Corvette running nothing but a naturally aspirated small-block. Except the scoreboard doesn’t always agree with the spec sheet. Put a Shelby GT500 next to a C5-generation Corvette Z06 and the car with the horsepower deficit is sometimes the one crossing the stripe first. That’s the kind of upset that keeps drag strip arguments going for years.

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500 Horsepower Should Win This, Right?

The 2007 Shelby GT500 backs up its reputation with a supercharged 5.4L making 500 horsepower and 480 lb-ft, routed through a Tremec TR6060 six-speed. Ford quoted a 4.5-second 0-60 and a 12.9-second quarter mile at 112 mph, and every one of those engines was hand-assembled at the Romeo plant with a plaque signed by the team that built it. This is not a car that’s shy about its numbers.

Why the Lighter Car Keeps Up

The C5 Z06’s LS6 gave up serious ground on paper – 385 horsepower at launch, revised up to 405 for 2002 – but it only had to move 3,118 pounds, nearly 700 less than the GT500. The result: a 3.9-second 0-60 and an 11.9-second quarter mile, actually quicker than the more powerful Mustang. It’s one of the oldest lessons in the muscle car book – horsepower wins arguments, but weight wins races.

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