Ford Mustang 2011 GT vs Chevrolet Camaro 2010 SS vs Dodge Challenger 2010 SRT8

The 2011 Ford Mustang GT, 2010 Chevrolet Camaro SS and 2010 Dodge Challenger SRT8 gave up horsepower to each other in almost every direction, yet the finishing order at the drag strip was never really in doubt once curb weights entered the picture. One of the three carried nearly 500 pounds more than another. Read on for the numbers, the chassis differences, and why the least powerful car kept winning.

Three of Detroit’s pony cars lined up for a comparison that looked like a coin flip on paper, with horsepower figures separated by a margin small enough to fall inside manufacturer rounding. Everything about the specification sheets suggested a close fight, and that is exactly how the argument was framed in every forum thread leading up to it. What the timing equipment recorded was not close. The gap that opened between first and last was wide enough to make the horsepower discussion irrelevant, and it came down to a number none of the three manufacturers put in their advertising. The car that gave away power to both rivals is the one that drove away from them.

The Horsepower Nobody Should Have Argued About

The 2011 Mustang GT arrived with Ford’s new 5.0-liter Coyote V8 producing 412 horsepower and 390 lb-ft of torque, a substantial jump over the 315-horsepower 4.6-liter three-valve engine it replaced. The 2010 Camaro SS used the 6.2-liter LS3 rated at 426 horsepower and 420 lb-ft in manual-transmission form. The Challenger SRT8 ran Chrysler’s 6.1-liter HEMI at 425 horsepower and 420 lb-ft. Fourteen horsepower separated the strongest from the weakest, which is well inside the range of run-to-run variation on any given day. On those numbers alone, the outcome should have depended on the driver, the surface and the weather.

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The Number That Actually Decided It

Curb weight was where the three cars genuinely diverged. The Mustang GT came in around 3,600 to 3,660 pounds depending on equipment. The Camaro SS sat closer to 3,860 pounds, and the Challenger SRT8 landed near 4,140. That spread of roughly 500 pounds between the lightest and heaviest is not a rounding difference, it is the weight of three adult passengers. Power-to-weight, not peak horsepower, determines acceleration, and by that measure the Mustang held a clear advantage over both rivals despite conceding output to each of them. Every dynamic result in this comparison follows directly from that one figure.

What the Timing Gear Recorded

Independent testing of the 2011 Mustang GT with the six-speed manual regularly produced 0-60 mph times in the 4.5 to 4.8 second range and quarter-mile passes around 12.9 to 13.1 seconds. The Camaro SS ran close behind, typically in the high 4s to the quarter in roughly 13.0 to 13.2. The Challenger SRT8, carrying its extra mass, generally needed a little over five seconds to 60 mph and around 13.4 seconds through the quarter. In isolation none of those figures is disappointing. Lined up against each other on the same afternoon, the differences are visible from the grandstand.

Three Completely Different Rear Ends

Underneath, these were not three variations on one idea. The 2011 Mustang still used a solid live rear axle, a layout Ford would not abandon until the 2015 redesign. The Camaro rode on GM’s Zeta platform with an independent rear suspension, shared in broad strokes with the Pontiac G8. The Challenger sat on Chrysler’s LC architecture, which drew on Mercedes-derived componentry from the company’s DaimlerChrysler period and also carried independent rear suspension. On a prepared drag strip the live axle is arguably an advantage for hooking up. On a broken back road it is the Mustang’s clearest weakness of the three.

Why the Challenger Was Never Trying to Win This

The Challenger’s weight was not an oversight. Chrysler built it as a large, comfortable two-door with genuine rear seat room and a trunk that swallows luggage, on a platform originally engineered for a full-size sedan. It is the only one of the three an adult can sit in the back of without negotiation. That brief demanded structure, sound deadening and length, all of which cost pounds. The SRT8 was quick in absolute terms and enormously satisfying to drive at seven-tenths, but it was never conceived as a stopwatch car. Judging it by quarter-mile times measures it against a target Dodge was not aiming at.

The Coyote Changed Ford’s Trajectory

The 5.0-liter Coyote engine introduced for 2011 deserves more credit than a single comparison test can convey. It brought dual overhead cams, four valves per cylinder and independent variable cam timing to a Mustang GT, and it revved with an enthusiasm the pushrod competition could not match, pulling hard toward a 7,000 rpm redline. It also proved enormously receptive to modification, which is a substantial part of why these cars remain popular in the aftermarket today. The engine went on to underpin every subsequent Mustang GT and was carried into the F-150, a durability endorsement of its own.

What Happened Next in the Horsepower Race

None of these figures held for long. Dodge replaced the 6.1-liter HEMI with the 392, a 6.4-liter unit rated at 470 horsepower in the SRT8, for the 2011 model year. Chevrolet answered with the supercharged Camaro ZL1 in 2012 at 580 horsepower. Ford had already fielded the Shelby GT500 and would push it to 662 horsepower for 2013. Within roughly two model years the numbers in this comparison had been left behind entirely, which is worth remembering when a 400-horsepower V8 pony car now reads as a modest proposition.

What They Are Worth Now

All three have aged into affordable performance, which is the quiet upside of the story. Clean 2010 to 2011 examples of any of them trade for a fraction of what a comparable new car costs, and parts availability remains excellent because they were built in serious volume. The 2011 Mustang GT holds a slight edge in enthusiast demand thanks to the Coyote engine and its aftermarket support. Camaro SS values have been steadied by the model’s discontinuation. The Challenger SRT8 is arguably the value proposition of the three, because the 6.1-liter cars sit in the shadow of the 392 that replaced them despite being nearly as quick and considerably rarer.

The Lesson That Outlasted the Cars

This comparison is still cited because it demonstrates something that has held true in every era of the muscle car. Peak horsepower is the easiest number to advertise and among the least useful for predicting what a car does. Weight, gearing, tire compound and how much torque a car can actually deploy without spinning the rear wheels matter more. A lighter car with less power beat two heavier cars with more, and it did so repeatedly rather than on a lucky run. That principle applied in 1970, it applied in 2011, and it applies to every specification-sheet argument being had right now.

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