This is a tricky one, what is Maserati testing here with this GranTurismo? Is it a hotter version of the GranTurismo or is it a mule for a new model from Maserati. So far the only visible thing is the big rear spoiler and the exhaust pipes that are more central mounted then usual. In normal case the GranTurismo has four pipes, two on each side. But this one has only two, one on each side.