Trunk comparison: Kia Sportage vs Opel Corsa

Highlighted Differences (>10%)
The Kia Sportage offers a +14.6 in (28%) longer cargo area with the seats folded down compared to the Opel Corsa. With the front row upright, the Sportage's cargo area is +9.4 in (36%) longer. The width of the Sportage's trunk opening is +7.5 in (22%) larger than that of the Corsa.
The depth of the trunk (from loading edge to trunk floor) is +7.1 in (1700%) greater in the Opel Corsa than in the Kia Sportage — meaning: the Sportage practically has a significantly deeper cargo area or a lower trunk floor.
Impact on Usability
Longer cargo area (Sportage): The additional +14.6 in (with seats folded) and +9.4 in (with front row upright) allow transporting significantly longer items (e.g., furniture parts, skis, long sports equipment) without detours or roof racks.
This generally makes the Sportage more flexible for occasional transport of larger lengths.
Wider trunk opening (Sportage): A +7.5 in wider opening dimension makes loading and unloading bulky or wide items (boxes, furniture panels, strollers) easier. Larger parts can be maneuvered more easily through the opening.
Deeper cargo area (Sportage) vs. higher floor (Corsa): Because the Corsa has a trunk floor that is +7.1 in higher, its cargo area is shallower and easier to access — heavy luggage can be lifted onto and removed from the cargo area more easily.
The Sportage offers more usable volume and space for taller or stackable cargo due to the deeper floor but requires somewhat more effort when lifting heavy loads and may require reaching deeper.
Minor differences (not highlighted): The height of the trunk opening is the same; the Sportage's loading edge is only +0.8 in (3%) higher — which is hardly noticeable in practice.
The narrowest width is +3.1 in (8%) larger in the Sportage, which is a small advantage but below the 10% threshold and therefore less relevant.
Conclusion
In short: The Kia Sportage is clearly advantageous when it comes to length, opening width, and usable volume — it is better suited for long, wide, or bulky cargo. The Opel Corsa scores with a higher floor, which makes handling heavy luggage easier, but has significantly less cargo area and a narrower opening.