Tuscon 4th gen is also the same size as the Sportage 5th gen, and both are available in in Short and Long Wheel Base models.
Tuscon and Sportage have been the same platform and vehicle for quite a long time. Don't forget that Hyundai actually owns Kia so they develop their vehicles jointly and mostly only make stylistic changes while most structural and mechanical underpinnings are the same.
So you will have a KIA counterpart to every Hyundai vehicle, like Sportage and Tuscon, Sorento and Santa Fe, Carnival and Staria, K5 / Optima and Sonata etc.