I picked up a set of wheels that appear to have been tended to with the Sonax/BMW cleaner. It is a bit of an etchant and when comparing the finish of these newer 220 wheels, to my 5 year old 220s that haven't seen Sonax, the older wheels win outright. While still great looking, the surface of the barrels is no where near as smooth, or deep looking. Don't shortcut the extra 45 minutes to clean the wheels with a brush and stool
