Not affiliated at all with this but recommendation a few local BMW friends run a AC server and have a guy Ceky who creates cars for them. He has his Big Turbo F80 M3 created in game link to the patreon for it -
https://www.patreon.com/posts/71268511
Server if you want they have F8x's, G8x's , E9x, E46 etc and all kinds of BMW's on their servers.
https://gapplebeesac.com/