Trunk comparison: Kia Stonic vs Nissan Rogue Sport

Significant Differences (>10%)
The Nissan Qashqai offers a trunk that is +11 in (≈20%) longer with the seats folded down compared to the Kia Stonic. Additionally, the Qashqai has a trunk that is +7.1 in (≈26%) longer with the first row of seats upright and a wider trunk opening by +5.1 in (≈13%) compared to the Stonic.
On the other hand, the Kia Stonic benefits from a significantly greater trunk depth: the distance from the loading edge to the trunk floor is +4.7 in (≈200%) larger in the Stonic.
Impact on Usability
Longer loading surface and wider opening in the Qashqai mean: longer items (e.g., furniture parts, skis, slats) are easier to transport, especially when the rear seats are folded down. The larger opening simplifies loading wide or bulky items and reduces maneuvering when loading.
The significantly greater depth of the Kia Stonic (greater drop from the loading edge to the floor) creates more usable volume below the loading edge. This is practical for bulky but not very long items or for irregular storage (boxes, bags), and allows for more hidden storage space.
However, a deeper floor can make reaching in and lifting heavy items more difficult, and very long items are harder to accommodate despite the depth due to the shorter length.
Smaller or Negligible Differences
The loading edge height is the same. The trunk opening height in the Qashqai is only +0.4 in (≈1%) higher and the minimum width in the Stonic is only +0.4 in (≈1%) larger — both practically without noticeable impact on everyday usability.