To add to this, here is the Australian brochure for the new Carnival. This might be more applicable to the US market than the Korean market version.
It provides a good features comparison of the 4 trim levels offered there (likely the same here).
https://www.kia.com/content/dam/kwcms/au/en/images/pdf/carnival/kia-carnival-brochure.pdf
It provides a good features comparison of the 4 trim levels offered there (likely the same here).
https://www.kia.com/content/dam/kwcms/au/en/images/pdf/carnival/kia-carnival-brochure.pdf