[johnny1]

I do agree that the GT Mustangs I've looked at the fascia is up snug at the seam.

 

[johnny1]

Most of us have this problem and so far don't know of any one who has corrected it even as I did with a body shop that it didn't come back. The 2016 I traded for my 17 had a even worse gap right from the factory. Several theories of what to do and have done to no avail. I think if they would have left the tabs off there it wouldn't look so miss aligned rather just a little more spaced.