I was troubleshooting the door release last year & when I replaced the driver door card/panel I broke the clip on the lower left corner (as I face the panel)

I searched & found a replacement.
It came in a green colored plastic pouch.
Has a barcode and it says: "Jaguar door panel casing clip XJ8 98–03”
Also has the following model number: “KTD300002GEN.

I have procrastinated because I didn't wanna take the whole door card off again. Today I decided to see if I could replace it by just pulling the loose lower outside corner and the answer is yes… Almost..
My replacement clip is significantly smaller than my old damaged one!

I used my digital caliper and measured my new clip and the circular top is 19.4 mm O.D..

My old semi oval shaped bad clip is 21.4 mm wide & 22.7 mm long O.D.

The slot on my new clip is much too small to slide onto the white, round, plastic, ‘button’ piece on the door. I tried forcing it but not even close.

Searching I see only clips that look like the new one I bought that is too small.

Found an eBay listing for 30X Door Panel Fastener Clip Stud Fits For Jaguar Xj8 XJR 1998 1999 2000-2003

But it shows top = 13.4 mm O.D. Even smaller than my new clip!

I assumed all the door clips around the edges of the door card were the same size. Only the huge one in the center was much larger & completely different.

Any ideas?
Thanks!

Steve