I do like the second one better. The first thing that came to mind when looking at the first version was that the chrome wasn't really shining, which I think you've accomplished in the second.
What I would like to see is something in between the two. There were some things about the first that I did like better. In the second shot there appears to be another car beside your subject - I liked not seeing that neighboring stripe. I also liked not seeing the bright reflections in the black paint of the hood and wheel wells. It's your call whether to get this feel by cropping or by cloning/dodging/burning the relevant areas (personally I think the crop in the first shot is a little stronger due to the balanced position of the chrome and headlights).
You might also want to consider darkening the bottom left corner - in my opinion this shot works best when it's just chrome and glass against black. There is a triangle that seems to be light background under the chrome bumper. Since it's the only background that intrudes on the shot (and is light - eye-catching - to boot), I'd try to minimize it's draw.