I have tried to find the search and a contribution for 20", but would be very happy if I could get help especially to my project.

I have an A8 from 2000 and an original set of S-Line rims for the successor model. I plan to use winter tyres with 245/45/R18 and mount them on my D2. The question is, can I drive the rims like this, or do I have to have them registered? In summer I would like to buy a set, but in 19" the question would be the same, are the rims allowed on the D2 and if so, simply on it or what conditions must be met?
Thank you for your help.
greetings
Carsten
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