OE optional size wheel/tires on my Mazda are 17x7, 215-50-17. I will be buying a winter wheel/tire package and was thinking it might be beneficial to go with the 16" standard OE wheel/tire size rather than the lower profile, 50 series 17" tires. Would there be a real and significant benefit to a 16x6.5 with 205-60-17 tires for winter only use? I think the 16" tires have an extra half inch of sidewall versus the 17 inch, 50 series tires and I'm also pretty sure they are a bit more narrow. So is the difference between these two sizes splitting hairs or will it be worthwhile to go with the 16" wheel/tire?