My car is about 2 years old and it has scratches here and there on the exterior. Someone told me that even if I had the paint ordered from Honda with the given serial number written on the door it still won't be a match because the paint has somewhat changed color in the sun. Is that true? That within 2 years the color of my car (which is silver) changed that significantly that if JUST the scratches were painted it would be noticable?