To achieve higher quality, you generally have two options: replacing the entire file or editing it.
This long-running project uses AI upscaling (like ESRGAN) and hand-crafted remakes to bring surfaces to 1024px and 512px standards. You can find it on ModDB or follow the creator on GTAForums . gta3 img file extra quality
A specific replacement for the vehicle models inside gta3.img , offering revamped cars with stunning detail. How to Install Extra Quality Textures To achieve higher quality, you generally have two