Anyone chasing quarter-mile times is better off skipping the GT500’s $18,500 Carbon Fiber Track Pack.

It might seem intuitive that if you’re trying to run the quickest straight-line times with Ford’s most powerful production car ever—the 760-hp Mustang Shelby GT500—you’d want to spend the money to upgrade to the optional performance tires. Car and Driver testing reveals that hunch is wrong, though. A GT500 is quicker—to 60 mph, to 100 mph, and through the quarter-mile—with the standard Michelin Pilot Sport 4S tires than with the Michelin Pilot Sport Cup 2 tires that are part of the $18,500 Carbon Fiber Track Pack.
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