WOW
Is that white wormed rim RedRobins?
how long did it take to get like that?
....2 weeks! - No, just kidding! About 2 years, even with regular cleaning etc.
The corrosion gets under the lacquer - there's really nothing you can do except choose one of the options I suggested in the linked thread on the subject.
It's not an uncommon fault on all BBS alloys with this finish and many have been replaced under warranty but VW/BBS still continue to supply this design! The Mk6 looks like it'll have it too.
Any wheel which has
ANY degree of kerbing, even if nowhere near the worm's location, will be
NOT be replaced under warranty.
Yes, those pics are of mine.