The great tragedy of the Concept Coupe was that it was never meant to be built. Drawing on the style of the vintage P1800 with a helping of American muscle—healthy haunches, slim windows—the two-door won much praise when Volvo brought it to the 2013 Frankfurt Motor Show. It was lovely, but no more than a showcase. Fans would have to settle for seeing elements of the design feed into Volvo products like the XC90 SUV and S90 sedan. Then the car world shifted.

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