I don't have a 250c, but I do drive an '06 250RWD that I put snow tires on. I heartily agree with 1990LS400 about buying a dedicated set of OEM wheels and having your snow tires mounted to them. I opted to buy an OEM set of wheels off of ebay from a seller who had replaced his wheels with aftermarket ones. I chose to put Blizzak's on my car and I wouldn't say it's a stellar performer in the snow, but the few times I've gotten caught it's performed fine.