The tables at the beginning of this thread are useful.
Well I hit another big pothole, driving home in the dark yesterday

That would probably have done damage to to the 17" alloys with low profile tyres, that are going to come on the new car.

At the beginning of the week there were 3 cars in the ditch on my way to work due to black ice on the road.
That has made my mind up - second set of alloys + winter tyres for my new toy. I have found a secondhand set of 16" Passat alloys for £180. They take the fatter 205/55 R16 tyres so should be a little better for pot holes. The seller assures me they fit a mk6 golf ok.
Does anyone else have 16" alloys on their GTI/GTD for the winter?