Platform is something else than chassis/internal code, no?
Often the platform is shared by a lot of vehicles with no direct relation (or is that different for US cars than for EU cars?)

Technically, it's specific to a certain set of vehicles made. I'm not 100% sure but the AS platform for the 1991-95 Caravan's is only for that specific for those Chrysler minivans. Here's a link that shows the internal code's for the Chrysler vehicles
https://www.allpar.com/forums/threads/master-platform-body-codes-list.81103/

We already use a ton of these body codes on the website already. AS is another one unless they are incorrectly listed.

For all these vehicles, model is "500L Trekking" and to erase from Extra Info.
http://www.imcdb.org/vehicles.php?resultsStyle=asImages&yearFrom=&yearTo=&makeMatch=- 2&make=fiat&modelMatch=0&model=trekking&modelInclExtra=on&mk=&origin=&madein=RS&madefor=- &role=
and these:
http://www.imcdb.org/vehicle_1179079-Fiat-500L-330.html
http://www.imcdb.org/vehicle_1215471-Fiat-500L-330.html
http://www.imcdb.org/vehicle_786187-Fiat-500L-330-2013.html
http://www.imcdb.org/vehicle_1012692-Fiat-500L-330-2014.html
http://www.imcdb.org/vehicle_877627-Fiat-500L-330-2014.html

For more information, see comments.
http://www.imcdb.org/vehicle_1282176-Fiat-500L-Trekking-330-2016.html

The chassis code for the 2005-09 Chevrolet Uplander, Pontiac Montana SV6, 2005-07 Buick Terraza, 2005-07 Saturn Relay, and the 2006-10 Buick GL8 is [GMT201]

https://en.wikipedia.org/wiki/GM_U_platform#3rd_Generation

The chassis code for the 2001-05 Pontiac Aztek and 2002-07 Buick Rendezvous is [GMT250]

https://en.wikipedia.org/wiki/GM_GMT_platform

Likewise, the Chevrolet Traverse, Buick Enclave, Saturn Outlook, and GMC Acadia's internal code is [GMT960]

2000-07 Ford Taurus internal code is [D186]
https://europe.autonews.com/node/334356/printable/print

From the link you provided
" Standard and Poor's says that Ford is dropping its internally developed next-generation platform, known as D186 in favor of the P2X. "

To me it means that they didn't used it , or did for something else

" Lincoln Merrihew, an automotive analyst with Standard & Poor's office in Lexington, Massachusetts, predicted the Volvo-based Taurus would go into production for the 2005 model year. Volume will be about 400,000 units annually. "

i think it might have been the Five Hundred they're talking about, by 2005 the 2000-2007 gen Taurus even had a facelift

or maybe i'm just understanding it wrong

We have nothing between 2005 and 2010
https://www.imcdb.org/search.php?resultsStyle=asList&yearFrom=&yearTo=&makeMatch=- 2&make=Buick&modelMatch=1&model=GL8&modelInclModel=on&modelInclChassis=on&mk=&origin=- &madein=&madefor=&role=

The internal code for the 2006-12 Chevrolet Colorado, GMC Canyon, and Isuzu I-Series is [GMT355].

By "I-Series" you mean this one?
https://www.imcdb.org/vehicle_690769-Isuzu-i-370-2007.html

Correct

I also forgot to include that the 2004-05 GMC Canyon and Chevrolet Colorado also used the same chassis code [GMT355]

"forgot to include"? So it was 2004 instead of 2006.

No, just the generic "TCR" codes. Sorry, I didn't see your question.

The following vehicles followed the internal code of GMX130.
1997-2003 Chevrolet Malibu
2004-2005 Chevrolet Classic
1997-99 Oldsmobile Cutlass
1999-2005 Pontiac Grand Am
1999-2004 Oldsmobile Alero

ok

As dhill-cb7 found out, the 1998-2005 Chevrolet Blazer, GMC Jimmy, 1999-2000 GMC Envoy, and the 1998-2001 Oldsmobile Bravada use the chassis code GMT330. We aren't fully sure when it was introduced for the 1983-88 generation though as only Wikipedia states the name originated during the late 1980s.

For all "2005 URO VAMTAC S3", Year is "1998+", Model is only "VAMTAC" and Extra info is "Rebeco".
http://www.imcdb.org/vehicles_make-URO_model-VAMTAC.html
https://en.wikipedia.org/wiki/URO_VAMTAC#Versions

For all "1998 URO VAMTAC S3" and "1998 URO VAMTAC S3 Ambulancia", Year is "2004+".
http://www.imcdb.org/vehicles_make-URO_model-VAMTAC.html
http://www.imcdb.org/vehicle_1140924-URO-VAMTAC-S3-Ambulancia-1998.html
https://en.wikipedia.org/wiki/URO_VAMTAC#Versions

The following Chrysler vehicles used the internal code of PL.
1995-2005 Dodge Neon
1995-2001 Plymouth Neon
1995-2005 Chrysler Neon
2003-2005 Dodge SRT-4
2000-2005 Dodge SX 2.0

https://en.wikipedia.org/wiki/List_of_Chrysler_platforms
https://en.wikipedia.org/wiki/Chrysler_Neon

For all "Made for Movie MRAP Freemanator" but not "Made for Movie MRAP Freemanator Light", It's "2007+ BAE Systems Caiman CMTV".
http://www.imcdb.org/vehicles_make-Made+for+Movie_model-MRAP+Freemanator.html
http://www.imcdb.org/vehicles_make-Made+for+Movie_model-MRAP+Freemanator+Light.html
http://www.imcdb.org/vehicles_make-BAE+Systems_model-Caiman+CMTV.html

The following vehicles used the chassis code GMX690
1995-99 Buick Riviera
1995-2003 Oldsmobile Aurora
1997-2005 Buick Park Avenue
1998-2004 Cadillac Seville
2000-05 Buick LeSabre
2000-05 Pontiac Bonneville
2000-05 Cadillac Deville

https://en.m.wikipedia.org/wiki/GM_G_platform_(1995)