Just said I'd through this up here for the E46 owners, I came across it on the NAM3FORUM.
https://r.tapatalk.com/shareLink/top...ink_source=app
Apparently these weather strips are from the original manufacturer.
https://www.ebay.ie/itm/BMW-e46-coup...-127634-2357-0
They're €190 for a set, which is still pricey enough, but alot cheaper than buying a full trim piece from BMW. I have no affiliation with the seller, nor have I bought a set myself.
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