BMW - Acronyms Translation 
BMW - Bayerischen Motoren Werke (or Bavarian Motor Works) 
C - Coupe 
CS - Coupe Sport 
CSi - Coupe 
CSL - Coupe Sport Lightweight 
M - Motorsport 
S - Sports or Special 
Ti - Touring International (twin Carb.) 
Tii - Touring International, Injected 
X - Four-wheel drive 
SA - Special Model 
L - Long wheelbase 
i - Fuel injection
BMW Engine Codes Translation 
Z8 - V8 M motor 
S62 - V8 4.9 liter M5 motor 
S52 - B32 Euro spec. 3.2 liter motor 
S14 - M3 4cyl. 16 valve 
S38 - New version M88/3 for M5 and M6 
M102 - 745i turbo engine 
M88/3 - M1 street motor and early M6 
M88/2 - M1 Group 4 race motor 
M88/1 - M1 Group 4 race motor 
M88 - M1 24 valve DOHC motor 
M70 - 12 cyl. motor 
M60 - V8 motor 3.0-4.0 liter 
M52 - B32 US spec. 3.2 liter M3 motor 
M50 - New small 6 cyl. 4 valve motor 
M40 - New 4 cyl. 4 valve motor 
M30 - Big 6 cyl. 2.8-3.5 liter 
M21 - Diesel motor 
M20 - Small 6 cyl. 2.0-2.7 
M10 - 4 cyl. 1.6-2.0 liter motor
BMW Chassis Codes Translation
Z8 - Z series V8 M motor 2001-current 
E65 - 4th generation 7 series 
E46 - 4th generation 3 series 1999-current 
E39 - 4th generation 5 series 1996-current 
E38 - 3rd generation 7 series 1995-2001 
E36 - 3rd generation 3 series 1992-1999 (including Z3 series 1996-2000) 
E34 - 3rd generation 5 series 1989-1995 
E32 - 2nd generation 7 series 1988-1994 
E31 - 8 series 1991-1997 
E30 - 2nd generation 3 series 1984-1992 
E28 - 2nd generation 5 series 1983-1988 
E26 - M1 1979-1980 
E24 - 6 series 1977-1989 
E23 - 1st generation 7 series 1978-1987 
E21/5 - 1st generation 3 series 1.8 motor 1980-1983 
E21 - 1st generation 3 series 2.0 motor 1977-1979 
E12/6 - 1st generation 5 series 3.0 motor 1975-1978 
E12/5 - 1st generation 5 series 2.8 motor 1979-1981 
E12 - 1st generation 5 series 4cyl. 
E10 - 2002 turbo 1973-1974 
E9 - 2.5-3.0 CSi/L 1968-1976 
E6 - 1600-2002 Tii 1967-1974 
E3 - 2.5-3.3 Li 
Type 121 - 2000-2000Tii 
Type 118 - 1500-1800 Tii 
Type 114 - 1602-2002 Tii