>>This suggests that the flat gray hubcaps were added in 1985.
>>>I think, the original early ones came with that chrome caps that only
>>>cover the middle of the wheel.  Later they went to the large disc with
>>>vents on.

Mike,
Our '85 GL (built in 09/84) came with full wheel covers made of chromed metal with nine slots around the edge and with black paint to make the slots look like triangles.  There five black "lug nuts" and an aluminum nipple with the Wolfsburg castle emblem in the center.  Two are in good shape and the two from the rear have lots of stone damage on the nipples.  We took them off and replaced them with the older style chrome hub caps.   Now I do not need wheel covers because we installed some 15" Audi "turbo" rims.
George,
'85 Westfalia