textures - 

all files in the folder go in update\x64\dlcpacks\patchday5ng\dlc.rpf vehicles.rpf file. 
within the rpf the vehicles.rpf file is located in x64\gta5\levels.

popgroups.ymt -
goes in update\update.rpf\x64\gta5\levels, drop it in there.

vehicles.meta -

goes in update.rpf. open that with openiv, navigate to common\data\levels\gta5 and drop it in.

mpchristmas2 one goes in update\x64\dlcpacks\mpchristmas2\dlc.rpf once inside navigate to common\data\levels\gta5 inside that rpf and drop it in.
every other DLC one goes in their respective "dlc_patch\dlcname\common\data\levels\gta5" folder in update.rpf

mpheist one goes in update.rpf navigate to dlc_patch\mpheist\common\data\levels\gta5 inside that rpf and drop it in.

vehiclemodelsets.meta -
goes in update.rpf. open that with openiv, navigate to common\data\ai and drop it in.

carvariations.meta -
spupgrade one goes inside update.rpf. open that with openiv, navigate to dlc_patch\spupgrade\common\data and drop it in.
mpapartment one goes in update\x64\dlcpacks\mpapartment\dlc.rpf. once inside navigate to common\data\ and drop it in.
.ini (optional) goes in main directory of the game, you'll need the create your own natural vehicle spawns script by PlasticTangerine
consult GLion's readme for his carcolors variation mod for the DLC vehicles as well

remember to back your orig stuff up if you think this sucks for some retarded
reason


all credit goes to RM76 on GTA5-Mods aka Officers Green & Johnson on Steam
only versions on GTA5-Mods and GTA-Inside are legit, anywhere else is an older version uploaded without my permission
special thanks to the admin of GTA5-Mods for never featuring this mod even though it was the first of it's kind and I put so much time and dedication into it. 
it's obviously because I didn't slap a Paypal button on it (I make my stuff for fun, not for money) and because i'm not a popular high level Steam user or a female streamer with an Instagram filter avatar