With 485 horsepower, racing stripes, and a snake emblem in the grille, the production version of the 2007 Ford Mustang Shelby Cobra GT500 was a shoe-in for our “studs” list. As in the 1960s, Ford is first out of the chute with a high-powered retro pony car, but is likely to be joined by the Chevy Camaro and Dodge Challenger before the end of the decade to wage a battle for retiring Baby Boomer investment and inheritance wealth. Offered in coupe and convertible format, the only thing missing here is an independent rear suspension.