The Audi center caps are very much larger than the Mercedes style. The
Audi caps cover the lug bolts too, not just the very center. The Audi
lug area is made without concern for appearances as Audi expects it to
be covered by the large caps. Typical Mercedes alloy rims leave the lug
area exposed so they are made to look good all the way to the center
hole and a small center cap finishes the look fine.

Mark

Raul Cisneros wrote:
>
>
> If you bore the centers out to the Mercedes spec of 66.6mm (2.622 inches),
> then you could probably use any number of Mercedes caps. Some Mercedes rims
> look like they have a bit of a lip inside the bore to hold a cap with
> click-fit arms around the perimeter, but there may be some press fit caps as
> well?
>
> Raul Cisneros
> 87 Syncro W Westy
> 90 Westy
> NY