After reading some of the replies after my installation, I noticed that there was indeed a very slight overhang. So after tracing the rounded opening, I shaved and rounded the corners just a little bit and it clicked right in. I have no overhang and absolutely no gaps, looks 100% OEM!

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-Dusty
2007 X3, Montego Blue
1998 Z3 Roadster, Montreal Blue
1996 Z3 Roadster, Jet Black
2016 Miata LE, Soul Red
1981 DeLorean, Stainless Steel
1979 Ferrari 308 GTS, Ocean Blue