The author of the model: Forza Motorsport 4
The author of the Converter in GTA IV: Audi_a8

Features of the model:
High-quality model;
Reflection of the city in the Windows;
Realistic settings handling;
The hands of the hero are located on the steering wheel;
Correctly applied the dirt on the car;
The sides are covered with carbon;
All the doors open as it should be;
Slides from the company Greddy;
The size of the wtf 8.18 MB;
The size of the wtd 3.48 MB.

Changes in v.Final:
In the final version of a lot of what has been done/redone, just don't tell..