Mr Wolfe - I have viewed all of your posts of your journey with your GTS, and what you might be experiencing is "what's next syndrome". You have your GTS set up perfectly. In fact I would say it is one of the nicest I have seen on the forums. (no slight to all of the other beauties on this site). That aside, when we get our GTS's dialied in the way we want them, they are, bar none, the best looking cars in the segment. Especially when compared with the boxy profile of the BMW product. Where I live, BMW's are everywhere. And while I see a lot of base and S versions of the Macan, the GTS is still a rare sighting.
Having owned several BMW M cars, there are two things that drove me crazy about them. First is the amount of brake dust they throw off. The wheels are contstantly dirty. And with that dirt came lots of expensive brake jobs. The clean wheels on the Macan GTS due to the PSCB brakes is one the things I love I about my GTS. They simply work brilliantly without the mess and fuss. The second thing about the BMW's that I don't like is the depreciation, which is simply a bi-product of volume produced, and how limited you are in personalizing options when you order. (I guess that is three things). For instance, when I built my GTS, I didn't want sunroof or roof rails (I loathe sunroofs), and to date, I have not seen one Macan in my area configured the same way. To me that is part of what makes my car special to me.
You have built yourself one heluva car. Take a breathe, give it a good detail, park it next to your other pretty little blue car and enjoy the view!