just updated the first post...take a look if you like...

We don't know which render to use, but I think 4 or 12. 
Maybe it would need more contrast ? Actually, I think tyre texture is too clear, and body materiel too shiny
Maybe you can fix it a little 
^^


Also if you could get the kind of view of those renders : http://www.life4pixel.com/index.php?do=skinpack and a 1920*1080 resolution, that would be awesome 








