We have a '53 facelift TD4 Sport with 18" Alloys, now in the market for 4 or 5 new alloys.

Seen some reasonable prices on the net for some, I know we need 18x114.3 but what width are they as standard?

And what width will safely fit in the arches without catching?

We will re-use the existing 18" tyres as they are pretty new.