18 inch Dezent alloys and Vredestein Wintrac Extreme - 225/40/18.
I bought them as a set from etyres for around £800 all in. Brand new, balanced and ready to go. Browse ebay for ages looking for a decent set of second alloys. I could not face a set of steelies on a GTi.
I live in the sticks so around end Oct / Nov I swop the Golf and ML over to Winters. Both have Vredesteins Wintrac Extremes which are remarkable winter tyres.
I overtook a Disco 4 in 5 inches of snow last year. He was driving at about 5 mph and the look on his face was priceless as i sailed by.