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@Decartha Ah, odd that they set version 1 as the current version. Guess they just weren't happy with 1.2. Thanks for your reponse, with both these solutions combined (+ some custom textures to get rid of the 'Clinton Luxury Auto Club' branding), this mod is perfect! Shame the creator doesn't seem to be active anymore.

@Remin2046 1. This isn't my mod :P
2. Make sure you've installed them properly, maybe follow along with a youtube tutorial on how to install them. It really sounds like you're just missing props (building elements) that should've come with Map Builder.

@guelo000 Hiya, I managed to make cars not spawn in the area by just completely removing the <carGenerators> code from the two .ymap files that handle the cargen on the parking lot. The files are:

'vb_36_strm_0.ymap' in Grand Theft Auto V\mods\update\x64\dlcpacks\patchday2ng\dlc.rpf\x64\levels\gta5\_cityw\venice_01\venice_metadata.rpf\

and

'hei_vb_36_strm_0.ymap' in Grand Theft Auto V\mods\update\x64\dlcpacks\mpheist\dlc.rpf\x64\levels\gta5\_cityw\venice_01\venice_metadata.rpf\

You can either edit these files in their original location, or just copy them and put the edited version (with the removed code) in your custom_maps dlc if you have one. Personally I'd suggest to just edit the original files since this is all in your mods folder anyway.

I have no clue if this is actually how you're supposed to stop the cargen (just ripping out code doesn't really sounds like it would be a good idea), but I couldn't find any documentation on how to remove cargens, only on how to change what car they spawn.
But hey, if it works it works ¯\_(ツ)_/¯

The only annoying things are the scenario's that happen on the parking lot.
1. Sometimes a car will drive onto the parking lot, and it will try to drive around on it and then leave it. Since the dealership is in the way, it just hits a wall and gets stuck. You mentioned that you at least managed to prevent this from happening using scenario files, it would be great if these were available for download somewhere
2. Sometimes a van with a surfer and his dog will spawn in the office in the rear left of the bottom floor. I believe this is also a scenario, but I don't have much experience with scenario's and I have no clue how I could prevent this from happening.

@Roxo87 I'd recommend the Persistence II mod, which let's you save cars anywhere on the map
https://www.gta5-mods.com/scripts/i-m-not-mental-s-persistance-mod

@Kekluisa @Remin2046 @jhp @Kraaal Make sure you install the following mods (they're right at the top of the description of this mod so idk how ppl can miss them)

REQUIREMENTS:
MAP EDITOR by Guadmaz - https://www.gta5-mods.com/scripts/map-editor
MAP BUILDER by OmegaKingMods - https://www.gta5-mods.com/tools/map-builder

Some other map mods also have these 2 as a requirement so I definitely recommend installing them :D

For some reason there's lots of Vapid Contenders driving around after installing this config, any idea how to fix this?