The following only applies to US cars. (maybe Canada and some other places as well)
1992 is the only year with solid grey bumpers.
1993 has painted bumpers with grey rubberized side panels and lower valances
1994 1st year for 318ti compact model (E36/5)
1995 Last year for 325 model
1996 body colored side skirts and bumpers for new 328i and some 318 models, New more angled kidney grilles
1997 Last year for 318iS and 318iC, Side airbags optional
1998 First year for 323iS and 323iC and Last year for E36 sedans side airbags are standard.
1999 Last year for E36 coupes, converibles and compact.
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