This has been on my mind since I joined this forum, but I figured it's about time I asked. The "mother" forum is www.bimmerpost.com
, which has a link to an M3 forum (m3post.com), but the latter includes headings for (what seems to be random) other BMW series. Should M3post.com have sections/forums for ALL generation M3s? It is very E9x-centric. (image attached).