Clearly stated and understood, man! I think we're starting to see a pattern here, though, from the (early) 60's when lots of wheels may have had varying colors on the wheel face depending on body color, to when they stopped painting wheels in complementary body colors, transitioned to all silver or silver with black accents depending on wheel style, like ROstyle Opel GT wheels (MGB steel wheels being a good comparison from ~1970 onwards), and ease of application of another color. Weird thing is, is that for BMW, steel wheels were never complementary to body color that I've seen. Always outwardly silver. Perhaps black paint was to be had at a cheaper price point than silver...and at high volume it made a difference to the bean counters