An improved version of the limousine from GTA 4

Limousine (GTA IV) Improved Version. The model is taken from the global GTA Brasil mod.

Model features:
- Model of good quality;
- Correctly configured materials;
- Correct work of lighting equipment;
- Fixed bugs;
- Fixed env values;
- Added reflections;
- Changed window textures;
- Adapted to vehfuncs.