I don't think summer tyres are much use in the snow so I have a second set of 17" wheels with 'Nexen winguard sport' tyres on them which can be got at a reasonable price online.I have to say however that the Goodyear tires on the 17" RS4 wheels did not work very well in the frozen snow last year and as I live on a hill I will be switching to pepper pots and proper winter tires.