if you are installing new rims, yes. but i would go to a 195/65R16 instead of the 55. the reason is that the tire will be taller, about the same size as the R17's you currently run.
if you go to
www.tirerack.com and run their winter tire package program for your car they will list a tire size on a smaller rim than you curently run. in truth, they will probably go to a narrower tire as well seeing as a narrow tire cuts through snow better. they will also try to match the current height of your tire, but remember, to do this you MUST get new wheels too.