Hi guys will a set of mk3 superb 18" zenith rims fit my mk2 superb ok? Has Anyone any pics with a set fitted?

I think the mk3 rims sit a little too far into the arches on mk2 models due to offset. I presume then you get into the whole spacer thing. 

The SIII alloys have a smaller offset - 44 vs 46- and they are 8in, i.e they will sit a little further out, NOT in.

5 minutes ago, 26DIPP said:

The SIII alloys have a smaller offset - 44 vs 46- and they are 8in, i.e they will sit a little further out, NOT in.

Whoops wrong way around. 

Does that risk wheel arch rub?

Not with 2mm to the outside and the inner will be almost the same.