I'm pretty sure I've got the correct wheel picked out but just in case I'm wrong, what's your return/exchange policy?

Hello, items are able to be returned or exchanged unless stated otherwise. You can also view our return policy at this link https://www.carid.com/help-center/product-return.html

Is this a full size wheel that can be used as a spare tire?

Hello, give our wheel and tire department a call at 888-903-4350