most of the ones in NA are in fact post-war build EMW badged as pre-war BMW.
I remember talking to a guy from former East Germany, who worked for Wartburg (pre-war BMW factory and post-war EMW factory), who mentioned that 328 body shells were still in storage as late as 1950s.
1984 318i w/M10 - restomod in progress :-)
1984 325e - in car heaven now :-(
1991 325i - project / parts car
2005 325i executive edition - daily driver :-)