I have to say this is a decent capture of this Cadillac. I do like the brightness and contrast used on the photo but one thing I would have like to have seen is the Cadillac crest on the grill to appear brighter or have some color to it. I believe if that is done it will be easier to focus on the center point of the photo instead of having your eyes wonder from side-to-side. I wouldn't make it too colorful or bright but just enough to signal out the main point of view. In doing so, the photo would need to be darkened on the car but leave the brightness surrounding it. Other than that, I think you have done a great job.
I like how it's almost black and white but you can still see the color in the Cadillac emblem and the grille. You do lose a little sight of the headlights toward the top and the roof line of the car, but other than that it is a fantastic photo. The contrast is very nice and its not too much to where it looks horrible. The sharpness of the picture is great, you can see the lines of the car clearly except what i said previously. If you really wanted to make it pop then you could darkened the backround and the lightened the car, vise versa. Also add more color to the emblem. Overall I think it is a great piece.