Hi! I have a 2010 Rav4 Sport model with 235/55 R18" tires on it, and I recently found a set of snow tires locally from a person who had them on their 2010 base model (I'm assuming) as they are 235/65R16" in size. They are claiming that they run 17" tires normally and that the tire place they purchased them from said it was okay to go smaller for winter tires. I'm wondering if they would fit MY vehicle. They come mounted on their own set of rims too. I'm wondering if I can go to that smaller size a tire for the winter months. Any help would be greatly appreciated. Thanks!