I think I went the wrong way with my PP; but since I spent time; here ya go lol. I'm willing to bet those are HDR's you posted along with multi flash/diffuser/reflector setups. Instead of see everything, I ended up with a dark grungy look. Sorry.
What I did was dodge the highlights and burn the shadows to make the features pop a little more. I also went over the ground dodging highlights and burning the shadows. Where there were tire marks I went over them once again. I desaturated the picture, which is just my taste, but I think it lends itself with the black car because you don't have the background colors distracting you. I also created 3 layers of gradient from black to white and put those on Multiply for their type to create a vignette affect; of which I controlled the amount with the opacity of the layer. I also have 2 brightness/contrast layers with masks. One controls the entire image minus the car and the other is just an inverse of the first ones mask to control brightness/contrast on the car. There are probably better ways to do this, but this is how I've figured it out and I know how to do it so it's how I do it; haha.
Good luck.
Additionally, looking back I would have not burned the tar line and cloned it out.