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@Jun485 Sorry for the late answer. Vstance doesn't work on any kind of lowrider. So also this mod. But if you want to make 7 versions of my impala into the impala dlc. You have to copy the impala definitions in the meta files 7 times in the same file (vehicles.meta & carcols.meta). And then make a copy of the impala yft model and YTD texture file itself 7 times and give them all different names. The names of the model must match the name of the texture archive (ytd). Then you have to change the vehicles model name in the vehicles.meta & the carcols.meta to individual different names for each entry. Just like you would add a complete different vehicle mod to the DLC. And carcols.meta and vehicles.meta must match with each other. Use Notepad++ to edit those files as its way easier to work with and allows you to revert a lot of changes if you fail. Also have powerful tools. I really don't recommend useing this mod as the first one for DLC merging example, as its already a very big DLC and makes it very complicated.

If you want to change then tuning parts with individual textures for each impala copy. You have to for ex. go to the RPF where the models and textures are for the tuning part you want to make a copy, and then copy the model and texture file to it there too with a different name. And add it also to the RPF where the others are. But to use it in the game, you have to rename/add the required tuning part in the carcols.meta for the entry of the impala copy you want to give that tuning part.

Just take a look at how R* is adding a bunch of addon cars into one DLC. Or look tools here which allows you to generate such DLCs. Just learn how it works, otherwise you won't able to do it. There are a bunch of tutorials and tools on how to merge a bunch of addon cars into one DLC (Which is basicly doing that by makeing indivudal impala copies). For ex. the "Easy Mod Folder EMF" Mod here on 5mods. Or the tool "Addon Creator Vehicles" here. You have to really know what you doing there. Learn it.

Also with this DLC you must keep in mind then, that you not exceed 1GB of the whole dlc.rpf file size. As it goes over the general memory limit. There is a heap adjuster mod. But i don't recommend getting over that limit, as it makes things unstable. And if you exceed this limit, you must split up the DLC into two, which is more complicated. But its recommended to not make a new DLC for each copy. Because GTA V DLC loading is limited and that would increase chances of crashes while on loading screen or while playing.