Small mods but looks very nice))) I like idea with front...looks more massive that orig)))) Atmosphere also good, but I think car too light for this bg)) Make another lights to car and say: this is photo with softbox
Great work
Subtle mods and looks good. Love the background and the style. However you do have some serious issues:
Rear wheel is off - needs more negative camber.
Front lip - perspective issues are off... needs to come down more on the left hand side.
Side skirt looks like its hovering and its flat.
Spolier - is floating.
Front shadow - at front bumper under the lip is very wonky.
And one erious thing you forgot to change was the reflections on the body panels. Their still reflecting the old background.