The base mod is larger than 300mb. It’s a heavy mod, compared to other truck mods.
This beacuse almost every single 3d model has been created using 3dsmax hi-poly to release a good quality mod.
Moreover, many of the interior, exterior textures and skins are in 2K and 4K quality.
Interior textures were created basing on pictures taken from real Iveco Turbostar trucks, I personally took thousands of pictures of plastic parts, textures, leather parts, bolts of the truck, then they were converted to high quality textures.
Some textures are larger than 10MB, and the mod itself has hundreds of textures, resulting in a heavy mod archive.
Anyhow, the mod has been tested and optimized to reach the best fps results, and it should be a just a little heavier than a standard scs truck.