Trunk comparison: Peugeot 3008 vs Peugeot 308 SW 3-row

Key Differences
The Peugeot 3008 offers a cargo space that is 8.7 in (15%) longer with the seats folded down than the 308 SW, and a cargo space that is 25.2 in (183%) larger with the seats upright.
The height of the trunk opening of the 308 SW is 4.3 in (14%) greater than that of the 3008, and the width of the trunk opening of the 308 SW is also 4.3 in (11%) greater.
The 3008 has a 2.8 in (175%) greater depth between the loading edge and the trunk floor as well as a 9.4 in (43%) higher loading edge above the road. The narrowest trunk width is the same for both models.
Impact on Usability
Practically, this means: For transporting luggage with full occupancy, the 3008 is clearly advantageous — the significantly larger cargo space with seats upright offers more storage without needing to fold down seats. Longer items also benefit from the extra length with the seats folded down.
The 308 SW scores points when loading bulky or tall items: The higher and wider trunk opening makes it easier to slide in and maneuver large, flat, or tall cargo. The somewhat larger opening allows, for example, furniture parts or moving boxes to be loaded more easily.
The significantly greater depth of the 3008 (distance from loading edge to floor) creates a deeper cargo well, gaining volume for tall or stacked cargo.
At the same time, the higher loading edge of the 3008 makes lifting heavy loads more strenuous; those who frequently load heavy items have a comfort advantage with the 308 SW due to its lower loading edge.
In summary: Those seeking more usable volume with passengers on board and longer cargo capacity are better served by the 3008. Those who prefer easier loading, simpler maneuvering of bulky or tall items, and a larger opening have the advantage with the 308 SW.