Trunk comparison: Kia Sportage vs Durchschnitt SUV

Key Differences
The Kia Sportage offers a trunk that is 3.1 in (≈5%) longer with the seats folded down and 2 in (≈6%) more cargo length with the first row upright than the average SUV.
The trunk opening of the average SUV is about 1.6 in (≈5%) higher. The trunk depth (from loading edge to floor) is 2 in and thus 400% greater in the average SUV compared to the Kia Sportage.
The loading edge in the average SUV is about 1.2 in (≈4%) higher above the ground. Width differences are negligible: at the narrowest point, the Sportage is 0.4 in (≈1%) wider, while the opening width is 0.4 in (≈1%) larger in the average SUV.
Impact on Usability
The significantly greater trunk depth of the average SUV (400% more) is the most important practical difference: it provides considerably more vertical space/between loading edge and floor, which is especially noticeable with tall or bulky boxes, stackable cargo, or low-lying luggage.
Such items can be more easily accommodated and often stacked more stably in the average SUV.
The Sportage scores with the slightly longer cargo length (with seats folded and with the first row upright). This makes it better suited for long, flat items (e.g., skis, long boards, or furniture parts) that require lengthwise space.
Additionally, the loading edge of the Sportage is lower, which makes lifting heavy items into the vehicle easier.
The slightly lower trunk opening of the Sportage can, however, limit loading very tall items; the approximately 1.6 in higher opening in the average SUV makes loading tall objects somewhat easier. Width differences are so small that they hardly matter in everyday use.
In summary: For deep, stackable, or tall cargo, the average SUV is more practical; for long, flat loads and easier lifting, the Kia Sportage offers advantages.