The most remarkable "addition" is the middle cooler with the outlet on top with the "GT-style" front spoiler lip.

According to my aerodynamic mind, this massively generates downforces compared to the GTS so that the downforce of the rear wing is matched.

The costs for such a change are probably too much for "just a GT package for the S/GTS".

If they put a different engine in it, it probably is the 3.8 litre of the Carrera S. "Just another" 3.4 litre would not make any sense. Probably they will "de-tune" the car so that it will not have the full 400hp like the Carrera S. I think the guess of 375hp could be quite good.

The question still is: Is it a "Cayman with Carrera engine and bad looks" or is it a "Bad Cayman GT" aka GT3 style suspension setup? :)