Hi dont know if anybody else has noticed it but the reason i said a light blue on the calipers is because upon removal for overhaul on my P6 I found traces of a light blue with a greeny tinge, this definately not done by me or previous owner - 2 owner car. there was only traces on the calipers in several different areas and you could see the paint was very old (original). I have absolutely no doubt of this whatsoever the other side was the same. This is a completely unmolested car, the calipers had never been off the car,. Regards Ken