XC 90 2,5 t winter tyres

Hello Volvo municipality, I think about buying a good used XC 90 2.5 t. That would then be an all-wheeled car. My question is, do I need there in our widths (Düsseldorf), actually winter tires or is that so with the bit of snow? If winter tires, then on extra rim? Are there any such large steel rims? What do you do there? I am now of course riding on the S40 winter tires, but is also not an all-wheeled. The new would be used by Private 1.Hand and would have 30000 km down. I think this is a reliable car. Thank you very much for your tips and information.