base:

xop:

I really like the bg, looks "mighty", but it steels some atention from the car.
I dont like the white reflections you've made, but overall i like the style of the car.

One of the coolest cars ever made this. Will have to agree with Fa-Design about the background. The reflections you have added would fit more if it was a studio shot maybe but I can see how its possible with a exposure picture.