Thanks everyone for the information on the tire situation AND that a full-size tire will fit! My husband took our Kia to our favorite tire store and bought a full size tire and it fits in the hole. We took one big trip with nothing but what the car came with, but for our next trip, later this month, we will have a real spare. Not a matching spare, but good enough to do whatever we want. We live in Texas and in the 12 years we've been here we've had more tire issues than my entire lifetime before moving here and I'm in my 70s. No place to be without a spare! Kia Niro 2018 EX.