1. Start OpenIV.
2. Go to pc/models/cdimages.
3. Open vehicles.img.
4. Replace vehshare.wtd.
5. Done.

If you want the metallic paint on your own vehshare :

1. Click on vehicle_generic_alloy_silver_spec.
2. Extract it.
3. Open your vehshare.
4. Replace the file.
5. Done.

Have fun. 

--

Some copyright bullsh*t here: 

Texture made by icelaglace.
The rest of the vehshare textures are from other modders.
It's just my personal vehshare.wtd.
I just did the metallic part.

Thank you.