Here's a few photos of these OEM upgrades I got back in 2018 which I personally think has made the car look a lot better.
Genuine BMW M3 Mirrors which came painted in sapphire black WINNING!! (Was not cheap to buy)
Front view of both the M3 mirrors- I think this upgrade makes any e46s look a lot better then those ugly square looking dated mirrors (especially on the pre facelift models)
Genuine E46 shark fin antenna that I found on ebay from a bloke in Poland that was breaking his 2004 e46 which also happened to be in sapphire black too! I managed to retrofit this to my car, nice little touch I think