Thanks I'll update these later, but with such criteria it is much faster/easier for me to do the updates directly on the server.

After some researches, I had some precision.
[S197] for 2005-2014 Ford Mustang.
http://en.wikipedia.org/wiki/Ford_Mustang_(fifth_generation)
[N10] for 1968-1972 Toyota Hilux.
[N20] for 1972-1978 Toyota Hilux.
[N40] for 1983-1988 Toyota Hilux.
[N50] for 1988-1997 Toyota Hilux.
[N60] for 1997-2004 Toyota Hilux.
[N70] for 2004-present Toyota Hilux.
http://en.wikipedia.org/wiki/Toyota_Hilux
Watch out, in the years of transition he can have two types of chassis there.
[GMT820] for 2002–2006 Cadillac Escalade.
[GMT920] for 2007–2014 Cadillac Escalade.
[GMT830] for 2002–2006 Cadillac Escalade ESV.
[GMT930] for 2007–2014 Cadillac Escalade ESV.
[GMT806] for 2002–2006 Cadillac Escalade EXT.
[GMT940] for 2007–2014 Cadillac Escalade EXT.
[GMT966] for Saturn Outlook.
[GMT967] for Buick Enclave.
[GMT968] for GMC Acadia.
[GMT561] for Chevrolet Traverse.
GM GMT platform:
http://en.wikipedia.org/wiki/GM_GMT_platform

These are the general codes for the Toyota trucks. There are different codes for various models (4WD/Extended cab/Crew Cab, etc.)

For these I can't do anything automatically: We have to decide to use one or the other, and then fix manually the remaining ones.

[S-10] for 1995-2005 Chevrolet Blazer.

Is that right?
I remember that we fixed some problems with the S-10 Blazer incorrectly listed as Blazer [S-10] but I do not remember what was said for the other ones.

Little error:
[S-10] for 1983-2005 Chevrolet Blazer.
[S-15] for 1983–1991 GMC Jimmy.
http://en.wikipedia.org/wiki/Chevrolet_S-10_Blazer

S-10 Blazer <> Blazer
Before 1995 the "Blazer only" weren't S-10, they were K-5: http://en.wikipedia.org/wiki/Chevrolet_K5_Blazer
They dropped the S-10 from the name when they stopped the K-5.
So [S-10] for the Blazer-only (and [S-15] on the Jimmy) would be right only for 1995+, but as I said above I am not sure it is fully right: were these codes still used even internally by GM?

[GMT001] for Chevrolet HHR/HHR Panel.
[GMT600] for Chevrolet Express.
[GMT610] for GMC Savana.
[GMT530] for Chevrolet Kodiak.
[GMT560] for GMC Topkick.
[GMT820] for Hummer H2/Hummer H2 Stretched Limousine.
[GMT913] for Hummer H2 SUT/H2 SUT Stretched Limousine.
[GMT745] for Hummer H3T.
[GMT420] for 1994-1999 Chevrolet Tahoe/2000 Tahoe Limited/1997 Tahoe PPV.
[GMT820] for 2000-2006 Chevrolet Tahoe/2005 Tahoe PPV.
[GMT921] for 2007-2014 Chevrolet Tahoe/2008 Tahoe Hybrid/2007 Tahoe PPV.

[S197] for all models Ford Shelby.
http://www.imcdb.org/vehicles_make-Ford+Shelby.html
[S197] for 2005-2008 Saleen Mustang.
http://www.imcdb.org/vehicles_make-Saleen_model-Mustang.html
[S197] for 200 Saleen S281/all Saleen S281 Extreme.
[SN-95] for 1994-2004 Ford Mustang.
http://en.wikipedia.org/wiki/Ford_Mustang_(fourth_generation)

I still didn't had time to do the list of the previous post, but it is not lost/forgotten: it is on my to-do list

Ah, oh, euh… Add "1943" to all the Ford M8 Greyhound.

It rather seems that 530 is for both Chevy & GMC 2nd gen, and 560 for both Chevy & GMC 3rd gen

[UN46] for 1991–1994 Ford Explorer.
[UN52] for 2001-2003 Ford Explorer Sport.
[UN105] for 1995–2001 Ford Explorer.
[UN105] for 1997-2001 Mercury Mountaineer
[UN152] for 2002–2005 Ford Explorer.
[U251] for 2006–2010 Ford Explorer.
[U251] for 2006 Mercury Mountaineer.
[U502] for 2011–2014 Ford Explorer.
[UW137] for Ford Excursion/Ford Excursion Stretched Limousine.
[U326] for 2007 Lincoln Navigator.
http://en.wikipedia.org/wiki/Ford_U_platform

^ As a not for the above, we seem to use UN150 for some later UN105 shape Explorers: http://imcdb.org/vehicles.php?make=Ford&model=UN150&modelMatch=2&modelInclChassis=- on

I suspect it is for 1998-01 models, with the 1995s being incorrectly listed (a couple of those look like 1998 or later models anyway).

I'll ask Ford_Guy, that's the safest before doing changes

The 231 BMW 5 [E34] of the 8 first pages dedicated to this model are at least 1988 models, as explained by S 415 GT
Shouldn't they have this MY, or is it better to leave the year blank?

For BMWs, Mercedes, etc. (any car that has a chassis-code identifying its generation) it is not very important to have the model year. It is more important for cars that carry the same model name through several generations/models without having a chassis-code to regroup them.
So in this particular case, I think it is better to leave the year blank rather than putting 1988 for all, as many may be later models (restylings in the generation).

GMC "mass" renaming? With "Pickup" as complement?

• GMC C/K-Series
  - for these 1960+ 29 trucks (although some may be Chevrolet trucks and some other can't be really identified).
Plus:
  - http://www.imcdb.org/vehicle_235050-GMC-Pickup.html (IMHO, should be in the GM C/K-Series page, in fact. Unless someone is 100% sure to see a double headlights set...)
  - http://www.imcdb.org/vehicle_592244-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_482692-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_86471-GMC-Pickup.html

• 1955-59 GMC Blue Chip for:
- 22 trucks
(but certainly not as a Pickup, even as complement, for this one, which should have a "Chassis + cab" category. And not as a ½-ton, as it has at least a 1½-ton payload, if not a 2-ton one )
Plus:
  - http://www.imcdb.org/vehicle_399235-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_240372-GMC-Pickup.html (with a Chevrolet Task-Force medium-duty 2 trucks behind...)
  - http://www.imcdb.org/vehicle_448493-GMC-Pickup.html

• 1947-55 trucks, said to be "New Design" by the Stovebolt crew and Tim Lederman, but the latter belongs to the crew...
GMC Truck History (pdf) from GMHeritageCenter.com just say "restyled Chevrolet 'Advance Design' cabs" (p.20).
So, if we keep it, GMC New Design for:
  - 23 trucks. Except this one, which is more likely a Chevrolet.
Plus:
  - http://www.imcdb.org/vehicle_335076-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_273631-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_456726-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_441632-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_426832-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_90005-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_85226-GMC-Pickup.html
  - http://www.imcdb.org/vehicle_42854-GMC-Pickup.html

Whatever the name choice is, and as for Advance-Design trucks, 1948 models should be set with a 1947 MY.

OK I'll see that later
(not much time today, will be tomorrow)