Used my 3200 in the South in the snow with little issue (M25 snow mind). 4200 struggled up here the first winter if it snowed so I got winter tyres last winter and it was awesome, really awesome. It was better than my wife's S3 Sportback until we put winter rubber on that too.
Bit of an issue with the GT at the moment. Front winter tyres are in the country but Pirelli say they may not make the rears this year!