THE REASON THESE ARE COLOURED UNLIKE ANY OTHER FIRST PARTY XBOX IS BECAUSE IT WAS MADE IN A LITTLE PROGRAM I MADE FOR XBOX CASE PAINTERS TO PREVIEW THEIR WORK ON A SLIGHTLY REALISTIC LOOKING XBOX BEFORE THEY GO OUT AND PAINT THEIRS
I can't believe none of you guys thought it could have been painted.
To do this, just grab an image (Everything else except one object in the image should be one colour), open it in GiMP, choose Layers>Transparency>Colour to Alpha, and then select the color you want transparent. Now, make a new layer under the now transpanret image, and colour it any color you want. You should now have a realistic-ish digitally edited image.