Open OpenIV. Go to: Grand Theft Auto V\mods\update\update.rpf\common\data (If you do not have a mods folder, create one manually in Windows Explorer, then copy the update folder from the main directory into it.)
The Ultimate Guide to GTA 5 Gameconfig 1.0.2189: Fix Crashes and Add More Add-On Cars gta 5 gameconfig 1.0.2189
How to Install Gameconfig (1.0.2189.0) for Limitless Vehicles Open OpenIV
Before replacing your game configuration file, ensure you have the foundational modding tools installed. Without these, a custom gameconfig will not work. Install a Heap Adjuster
Install a Heap Adjuster. Alternatively, select a lower traffic multiplier gameconfig variant (e.g., Stock Traffic).
Raises the maximum number of archive files ( .rpf ) the game engine can load at one time, which is crucial when installing dozens of individual Add-On car packs. Step-by-Step Installation Guide