I would not recommend driving the S year round. It will rust out and it's not an ideal winter vehicle by any stretch of the imagination. Yes - I hear you did with a Miata but I wouldn't have recommended that either.

 

S2000's do tend to get beat up more than other cars in winter. But...technically, most vehicles are still 2WD. S2000's and Miatas do just fine in snow.

I certainly wouldn't drive *mine* in salty snow. But...OP isn't me.

As far as other comments on VSA....VSA will help in snow. It mitigates yaw as well as wheel slip. You'll need/want to turn it off if you get stuck in deeper stuff. But it certainly won't hurt to have VSA in any other normal driving scenario. I wouldn't lean on VSA as a crutch to drive like a dummy, though.