I'm surprised bmw hasn't pushed up the press reviews since we are at a standstill. I came across these articles, which I thought were an interesting perspective. Some will say it's not the same thing, but I see it fairly apples to apples.
https://jalopnik.com/why-the-porsche...par-1668192364
https://www.evo.co.uk/porsche/911/carrera-gts
The GTS is a costly upgrade, that isn't a significant upgrade, but seems to make things more enjoyable. Yet, folks still buy them instead of just adding stickier rubber to an S.