It must be reflecting blue off the sky or something in these shots. I do have a rear pic of the same Monte car with a brownish colour, but the whole pic has a bit of a sepia tinge to it so it's difficult to tell.
When I originally did my car, I purposefully picked a very dark blue for these bits. IMO, it actually looks better than the brownish colour. Still, when it gets done properly it will have to be right....
