hi Zilla, you may want to try again with the perspective positioning of the front bar, engine & rear wing.
The wheels are good if you Photoshlopped them on, but fine tune the gold overlay. Front Bar changed.
On the front bar, I selected the yellow, just using the magic wand, and then using Hue/Saturation to make it greyscale -
just used the saturation slider all the way to the left & click OK, with the eye dropper I took a colour sample of the front panel,
then used hue/saturation again, clicked the colourize box which matched the slight blue in the panels, click OK.
I then used Levels to get the right depth in colour.