Trunk comparison: Mercedes Benz GLE vs Seat Leon

Key Differences
Four clear differences stand out from the data: The Mercedes‑Benz GLE offers a loading length that is 17.7 in or +30% longer with the seats folded down and 8.7 in or +27% longer with the first row of seats upright compared to the SEAT Leon.
Additionally, the trunk of the GLE is 9.4 in or +30% wider at its narrowest point. In contrast, the SEAT Leon has a significantly greater depth between the loading edge and the trunk floor: +9.8 in or +2400% compared to the GLE.
Impact on Usability
The greater loading length of the GLE (both with folded seats and upright seat row) makes it better suited for transporting long items such as slats, furniture parts, skis, or long boxes. Those who regularly transport bulky, elongated cargo or need a lot of usable space with folded seats clearly benefit from the GLE.
The significantly greater width at the narrowest point in the GLE makes it easier to store wide or irregularly shaped items. Wider suitcases, larger transport boxes, or bulky packages can be accommodated more easily and flexibly in the GLE than in the Leon.
The greater depth in the SEAT Leon (between the loading edge and trunk floor) means the cargo area there is noticeably "deeper" or more recessed.
Practically, this can have two effects: On one hand, low, heavier items can be positioned lower and the cargo sits deeper in the vehicle; on the other hand, a deeper floor/well profile can limit placing tall or bulky items directly behind the loading edge and affect handling when loading (depending on the loading edge height).
In short: the Leon offers more depth space, the GLE offers more length and width.
In summary: For long and wide cargo, the GLE is the more practical choice; for items that benefit from a deeper loading floor or where a deeper cargo profile is desired, the Leon provides an advantage.