Don't know if your still here or not, but a full size spare WILL fit, you just have to remove pieces of the foam organizer the 2 middle compartments and it will fit, just need a longer eye bolt with wing nut..Try OEM Kia SuperStore - Your Best Choice for OEM Kia Parts & Accessories! I got some mudflaps there. The DID have a spare tire setup for $199 but it's now up to $239. Ouch. Priced me out.