Rob,
Thanks for pointing out the 'img' code thing, I messed it up when I 1st posted. I agree on the compositing thing, not the easiest thing to do, and requires a little experimentation, and post processing to make it as convincing as I can.
I agree the image is a little plain, some of which I attribute to the choice of backplate/HDRI, there's not a lot going on there. Perhaps a slightly more reflective surface for the body and wheels would allow it to pop a little more? And a little additional shaddow added as you suggest.
So, I pack up my z8 off the Icelandic beach and take it to a more appropriate destination. A convertable in Iceland was a bad idea
. More to follow...
Thanks for the comments, this was my 1st image posted here, after seeing some of the mind-blowing architectural stuff on the Maxwell gallery, it took we a while to pick up enough courage to post my own image.