I'm making a decision for a Pontiac 2009 GT wheel size. My summer tires are on 17 inch stock rims.
Questions
1. Cheapest I found was at Costco and veering towards the Michelin Ice. Should I get a 16 inch or 17 inch for the winter?
2. Also my existing ten year old winter rims are rusted that I purchased from Costco. Is this normal? Should I change them or is this a safety risk?