This is a composited render using Nuke and Maya 2014.
BMW render with Matte Finish Paint.
Suggestions are welcome :)
Source
BG image -http://mttaborstudio.com/wp-content/uploads/2011/12/Mason-Lake-24-2.jpg
BMW model - http://www.blendswap.com/blends/view/22790
this is Raw render directly from Maya :)