Ok, I have a little bit of info to add here. I called my selling dealer today and was told that Kia has just supplied all dealers with a winter wheel package and part numbers for the Forte. The rims are 15" and fit all Fortes, even the SX with the larger brakes. Having said that, this guy also said the part number does not match any previous cars. He is pretty sure these 15" rims are unique but he would gladly do some measuring if I asked him to. I doubt these rims are anything special and I am relatively confident if we had the exact specs, we could match up some aftermarket rims which run around $20/per cheaper. They also recommend a 195/60/15 tire which is just a hair smaller than the stock 215/45/17's on the SX. This would mean your speedo reads slightly fast and your ODO clocks up KMS slightly quicker.... I would prefer a 195/65/15 which is just a hair larger than stock and has the opposite effect on the dash readings. Has anyone uncovered the exact specs required for a winter wheel yet? The only thing I have confirmed is the 5x114.3 bolt pattern. I have no Hub diameter, offset, or width.