At the 2014 New York Auto Show, to mark 100 years since the company was founded in Bologna, Italy, Maserati debuted its GranTurismo MC Centennial Edition coupe and convertible. Each Centennial Edition will be available in a trio of new three-layer color schemes in addition to the four currently available for the GranTurismo MC. Other notable exterior treatments include four special finish options for the wheels and a medal-shaped centenary logo on the hubcaps that is available in either a matte smoke-gray or a…