Entwickung (development) code list
114 early 02, 1966-1973
115 1500 4dr, 1962-1964
116 1600 4dr, 1964-1966
118 1800 4dr, 1963-1968
120 2000 coupe, 1965-1970
121 2000 4dr, 1966-1968
E3 early M30 sedans, 1969-1977
E6 02 touring, 1971-1974
E8 1800/2000 4dr facelift, 1969-1972
E9 early M30 coupés, 1969-1976
E10 02 facelift, 1974-1977
E12 1st-gen 5-series, 1972-1981
E20 2002 Turbo, 1974
E21 1st-gen 3-series, 1975-1983
E23 1st-gen 7-series, 1976-1989
E24 1st-gen 6-series, 1975-1989
E25 Turbo, 1972
E26 M1, 1980-1981
E28 2nd-gen 5-series, 1980-1990
E30 2nd-gen 3-series, 1981-1994
E31 8-series, 1989-1999
E32 2nd-gen 7-series, 1985-1994
E32/2 2nd-gen 7-series LWB, 1987-1994
E34 3rd-gen 5-series, 1987-1996
E36 3rd-gen 3-series, 1989-2000
E36/5 3-series Compact, 1993-2000
E36/7 Z3, 1994-2002
E38 3rd-gen 7-series, 1993-2001
E38/2 3rd-gen 7-series LWB, 1994-2001
E38/3 3rd-gen 7-series protection, 1998-2001
E39 4th-gen 5-series, 1995-2003
E46 4th-gen 3-series, 1997-2006
E46/5 2nd-gen 3-series Compact, 2000-2004
E52 Z8, 1999-2003
E53 1st-gen X5, 1998-2006
E60 5th-gen 5-series, 2001-2010
E61 5th-gen 5-series Touring, 2002-2010
E63 2nd-gen 6-series coupe, 2002-2010
E64 2nd-gen 6-series cabrio, 2002-2010
E65 4th-gen 7-series, 2000-2008
E66 4th-gen 7-series LWB, 2000-2008
E67 4th-gen 7-series protection, 2002-2008
E68 4th-gen 7-series hydrogen
E70 2nd-gen X5, 2007-2013
E71 1st-gen X6, 2007-2014
E72 1st-gen X6 Hybrid, 2008-2011
E81 1st-gen 1-series (3dr), 2006-2011
E82 1st-gen 1-series coupe, 2006-2013
E83 1st-gen X3, 2003-2010
E84 1st-gen X1, 2008-2015
E85 1st-gen Z4 roadster, 2003-2009
E86 1st-gen Z4 coupe, 2003-2009
E87 1st-gen 1-series (5dr), 2003-2011
E88 1st-gen 1-series cabrio, 2003-2011
E89 2nd-gen Z4, 2008-2016
E90 5th-gen 3-series saloon, 2004-2012
E91 5th-gen 3-series touring, 2004-2012
E92 5th-gen 3-series coupé, 2005-2013
E93 5th-gen 3-series cabriolet, 2005-2013
You guys can add the F and G codes. Dates are world production, not just US (to the best of my knowledge)
I think Z1 is either E33 or E35... those are the only choices that make sense to me. There may have been E38/4 for the L7
