I'm glad you like it. Its a simple skin. I think the grill looks best at this screenshot, beause I edited it a bit. In the CMX Viewer you'll see the reflections on it. Some people dont like this...
Same thing with fake lights.
One of my teamates requested it. Its a replica of the famous Audi A4 quattro which run in the 90's in STW series.
I've done two versions. One with a grill and one whithout it (only with the Audi logo).
well, I dont know where your problem is. Take some reference pictues of the Prost and adjust the colour of the skin till it matches with the original. And please dont use full-value RGB colors.They'll give give your skins a comic style, which is I suppose not the thing you want.
If you use Adobe Photoshop or another graphic software that eats *.psd files I can link you to this: http://www.lfs-gear.com/kitz.html
There is a shadow layer included. All you got to do is move it to the top and set the layer property to "multiply".
Sorry. I cant enjoy. Why dont you use Adobe photoshop or another professional Image software for creating skins. They'll look more accurate and better.