Lovely looking car. I saw something similar last year in the display area of the factory at Modena, and it had slicks on - could have been a mule, or even an actual GT4 car, not sure ...
Every 12 months or so Maserati do something 'new' with the same old QP platform, so I don't think we should be so surprised to see this car. The thing is, what do they do next? Biding your time before the next 'Big Decision' is one thing, but given that they have already launched a convertible GranTurismo and a 'hardcore' GranTurismo, what is there left to do with the platform?
My suspicion is that FIAT management have not freed up any R&D money for Maserati over the last year or so, but have told them nevertheless to extend the appeal of the brand and (of course) make some money.