2022 Cayman GTS 4.0 6-speed
I agree with your general assessment but not what “simply not refined enough” implies might be needed.The 718 is not uncomfortable, I have covered some serious mileage in mine in single trips. But it’s definitely not a GT car, its simply not refined enough to be considered as such, the road noise is a large part of this.
Please Porsche, do NOT refine the visceral sports car out of the Cayman. You already have gone too far IMO in growing/refining the base 911 into a mini-Panamera. Can’t even get many of the 911 models in a manual transmission.
If somebody wants to be soothed, massaged, and treated to concert hall audio on their highway trips, they have plenty Porsche models to choose from. Keep the Cayman visceral. And if that means a little road noise, so be it.