Just raw render with lens blur. :)
One of my favs. Looks great, but tire material is a little dull.
Nice work! I like seeing raw renders as much as touched up ones, really shows the raw power of the software vs. Photoshop skills.
Agree on the tire dullness, but overall great renders
Is the background an actual 3D enviro or just a backplate?
FYI- if you want to buy one: http://www.govliquidation.com/auction/view?auctionId=10639805 (http://www.govliquidation.com/auction/view?auctionId=10639805)
Maybe fix it up to look like the render ;D