Robz Mk7

I live in the northern US (Minnesota), and they salt the roads here in the winter. I have a different car I could drive in the winter, but I would have more funds to put towards the Evo if I sold it. Soooo…I guess I am wondering a few things.
1) How bad would it be to drive it in the winter?
2) Is there any way to prevent damage to the car from the salt/snow and what not?
3) Should I keep the other car, even though it would mean less funds towards the Evo?

Thanks for the input in advance guys!