Looking at getting a new ID.4 but need to know if it’s compatible with I-size car seats... we’re expecting our first baby and I thought isofix is enough but turns out I was wrong and they need to have gone through an I-size test! anyone able to help??

I have an isofix baby car seat, which cannot be secured with a seat belt, and I would very much like to be able to use it in the front of my Leaf. I have two questions: 1) Is it possible to retrofit isofix points to a front passenger seat? 2) Are front passenger seats interchangeable between...