neon_duke
Someone please point me to a chart of the BMW naming logic, because I only have a vague idea how it works, thanks to all the holes in it.
Oh, and how they decide the E-numbers, other than jsut picking them out of a hat, that would be nice too.
Okay, but I can only help you on recent US models. Here are the basics:
The first letter is the series. Obviously. 3 is the smallest, 5 is midsize, 7 is largest. Once again, obviously.
The second and third numerical character stands for the engine size:
3
18:
- 1.8L 4-cylinder (1992-1996)
- 1.9L 4-cylinder (1996-1997)
3
23:
- OHC 2.5L 6-cylinder (1998)
- DOHC 2.5L 6-cylinder (1999-2000)
3
25:
- DOHC 2.5L 6-cylinder (1992-1995)
- DOHC 2.5L 6-cylinder (2001-present)
3
28:
- 2.8L 6-cylinder (1996-2000)
3
30:
- 3.0L 6-cylinder (2001-present)
The letters following the three numbers on the 3-series models are the hardest to explain, so that's next:
E36 model (1992-1998)
318i = sedan, 1992-1998
318is = coupe, 1992-1997 or convertible, 1994-1997
318ti = 3-door hatchback, 1995-1998
323is = coupe, 1998, or convertible, 1998
325i = sedan, 1992-1995
328i = sedan, 1996-1999
E46 model (1999-present)
323i = sedan, 1999-2000, or wagon, 2000
323Ci = coupe, 2000, or convertible, 2000
328i = sedan, 1999-2000, or wagon, 2000
328Ci = coupe, 2000, or convertible, 2000
325i = sedan, 2001-present, or wagon, 2001-present
325xi = sedan, 2001-present, or wagon, 2001-present (all-wheel drive)
330i = sedan, 2001-present, or wagon, 2001-present
330xi = sedan, 2001-present (all-wheel drive)
330Ci = coupe, 20001-present, or convertible, 2001-present
The basic rule for 3-series models is:
i = sedan
is = E36 coupe or convertible
Ci = E46 coupe or convertible
xi = all-wheel drive
ti = Unique to the E36 3-door hatch, sold from 1995 to 1998. There's still a 3-series 3-door hatch worldwide, but due to several glaring problems with the original in the US market, it's not sold here.
Unofficially, models with a capital "T" at the end are wagons ("T" for "Touring" - as in, 330iT or even 325xiT) but BMW doesn't badge vehicles this way and it's more often used to describe 5-series models. Still, you see it sometimes for threes.
On to the 5-series!
5
25:
- OHC 2.5L 6-cylinder (1989-1990)
- DOHC 2.5L 6-cylinder (1991-1995, 2001-present)
5
28:
- 2.8L 6-cylinder (1998-2000)
5
30:
- 3.0L V8 (1994-1995)
- 3.0L 6-cylinder (2001-present)
5
35:
- 3.4L 6-cylinder (1989-1994)
5
40:
- 4.0L V8 (1994-1995)
- 4.4L V8 (1997-2003)
5
45:
- 4.4L V8 (2004-present)
Letters:
E34 model (1989-1995)
525i = sedan, 1989-1995, or wagon, 1992-1995
535i = sedan, 1989-1994
530i = sedan, 1994-1996, or wagon, 1994-1996
540i = sedan, 1994-1996
E39 model (1997-2003)
528i = sedan, 1997-2000, or wagon, 1999-2000
540i = sedan, 1997-2003, or wagon, 1999-2003
530i = sedan, 2001-2003
525i = sedan, 2001-2003, or wagon, 2001-2003
E60 model (2004-present)
525i = sedan, 2004-present
530i = sedan, 2004-present
545i = sedan, 2004-present
The basic rule for the 5-series models is:
i = sedan
That's it, officially. Unofficially, there are two more designations used originally by enthusiasts and more recently by pretty much everyone:
iT = wagon ("Touring", i.e. 525iT)
iA = automatic transmission (i.e. 540iA - though I've only seen it used to describe 530 and 545 models)
Next, the 7-series: Not much here.
7
40:
- 4.0L V8 (1995)
- 4.4L V8 (1996-2001)
7
45:
- 4.4L V8 (2002-present)
7
50:
- 5.4L V12 (1995-2001)
7
60:
- 6.0L V12 (2002-present)
E38 model (post-facelift; 1995-2001)
740i = sedan, 1995, and sedan, 1997-2001
740iL = sedan, 1995-2001
750i = sedan, 1995
750iL = sedan, 1996-2001
E65 model (2002-present)
745i = sedan, 2002-present
745Li = sedan, 2002-present
760Li = sedan, 2002-present
The basic rule for the 7-series models is:
i = sedan
iL = E38 long-wheelbase sedan
Li = E65 long-wheelbase sedan
The most official unofficial term was "740iA" which almost always referred to the 1999-2001 E38 7-series with the Sport Package (iA = automatic transmission). James Bond drove it in the second one Brosnan did - "The World is Not Enough"? One of them. I've owned two 740iA Sports.
Finally, the 8-series:
8
40:
- 4.0L V8 (1994-1995)
- 4.4L V8 (1996-1997)
8
50:
- 5.0L V12 (1991-1994)
- 5.4L V12 (1995-1997)
- 5.6L V12 (1994-1995)
E31 model (1991-1997)
850i = coupe, 1991-1992
850Ci = coupe, 1993-1997
840Ci = coupe, 1994-1997
850CSi = coupe, 1994-1996
The basic rule for the 8-series models is:
i = used only on the 1991-1992 850 coupe
Ci = the basic designation
CSi = if there was an M8, this was it
A few other rules. "i" always seems to mean the most basic, most popular, most-produced model, except with the new 6-series and 8-series (except in 1991 and 1992) where they're all at least Ci, no matter whether they're a coupe or convertible:
3##i = sedan
5##i = sedan
7##i = sedan
Z3 #.#i = coupe/convertible
Z4 #.#i = convertible
X3 #.#i = SUV
X5 #.#i = SUV
"x" anywhere in a BMW model's name means all-wheel drive. "is" was recently revived for a sporty version of the X5 because the M division didn't want to technically do an SUV, even though the X5 4.6is and current 4.8is is as close as we're going to get to an MX5 without going to a Mazda dealer.
One more interesting note: BMW model numbers are
NEVER closer together than five on the US market. This is the
only rational and logical explanation I can come up with as to why the 323 wasn't re-named the 325 when it was re-designed in 1999.
That covers most of it since the early 90s. 👍
EDIT 1: The 318 models get kind of complicated. The 318 coupe and convertible were cancelled in 1997 and became the 323, using a de-tuned version of the 325's engine. The 318 sedan did remain to finish out the run, as did the 318ti, the girly hatchback, though it was created in 1995, not 1992 like the 318 coupe and sedan.
EDIT 2: There was no 1996 model year for the 5-series. Technically, some 1995 models that BMW dealers didn't sell were sold as 1996s, but the E39 came pretty quickly in early 1996 as a 1997 model so a true 1996 model was never needed.
EDIT 3: Added 8-series.