Due to the bodywork shape of the Tucson I’d agree the Ariya will have more space in the rear!
@Shaun suggestion of the C5 Aircross maybe the best solution, as they have 3 full size seats in the rear I beleive.
However I’d lok at all of them as the Ioniq’s especially the 6 have thin door cards, which suggests space.
I’d be willing to measure the rear seats in my Tucson if that helps perhaps @Shaun & @TheSUVguy could do the same?
