2013 LP560 TT
Agreed it’s a silly part but a pain to deal with. The ones you showed above work ok if you modify them. However, they won’t work if you don’t cut a relief in the top. The OEM essentially twist into place using the notch. If you force the Ford/GM round top ones they deform or risk breaking the fragile OEM panel brackets (which only are glued or plastic welded 😞).
If anyone wants ones that fit as OEM I have a bunch that are already “notched” and fit easily.