I'm after a little bit of advice, I saw these on a 3 series and I thought they looked a lot better than the non illuminated ones I currently have. According to the listing they don't fit but I can't see a reason why they won't, I am more than happy to be corrected by more knowledgeable minds or consider other options.
https://www.ebay.co.uk/itm/Genuine-BMW-M-PERFORMANCE-ILLUMINATED-DOOR-SILL-TRIM-SET-KIT-51472359786/182913147201?epid=1654313488&hash=item2a96792141:g:wpoAAOSwgHJZyhKj
https://www.ebay.co.uk/itm/Genuine-BMW-M-PERFORMANCE-ILLUMINATED-DOOR-SILL-TRIM-SET-KIT-51472359786/182913147201?epid=1654313488&hash=item2a96792141:g:wpoAAOSwgHJZyhKj