Weight reduction in any form is always a huge plus. It simply cannot be beat as a tool to improve handling. Having said that, the GTS vehicles were designed to as closely as possible mimic traditional sports car driving dynamics. Which means rear drive bias and the ability to corner as flat as possible close to threshold limits without losing composure, as such, in my opinion, the GTS and the Turbo PP package provides a balance and feel that cannot be matched in the segment despite numerous attempts by competitors.
I have to disagree on a number of fronts.
I realize no Macan owner wants to hear this, but the Stelvio plain and simply outhandles the Macan. I have never seen nor read a professional car review that said otherwise, and I have driven three of them myself including a Q4. I would not personally buy a Stelvio for other reasons, but I think we need to give Alfa credit where credit is due.
I'm curious if you have actually driven a base Macan. Even without AS or PASM, the base feels more nimble and more balanced, and has more immediate turn in. I would say even most casual drivers would notice the difference immediately, and I am far from the only forum member that has picked up on it. Yes, I don't think there's any question the GTS would be the better performer on a skid pad and have more ultimate grip because it's lowered. But the base feels more of the nimbleness of a sports car, not that any Macan really comes anywhere close to the feel of a true sports car.
Not trying to knock the GTS at all. No question it benefits from being lowered and I personally would not buy a base Macan as I would never be satisfied with the four-cylinder engine, and definitely favor the GTS engine instead.
But I do have some skepticism regarding some of Porsche's marketing hype about the GTS. I think much if not all of what has been accomplished on the handling front is simply a result of lowering the car. That makes a huge difference especially because the Macan is on the heavy side. Nothing wrong with that, but I have owned Porsches for decades and have experienced their marketing hype repeatedly. I've learned to recognize it when I see them making rather vague statements versus engineering facts. Not picking on Porsche. The marketing people for the vast majority of all consumer products companies do the same thing to some degree.
I recognize my thoughts are probably not going to be popular here, but again they are simply a result of a considerable amount of experience owning a number of Porsche vehicles.