Trunk comparison: Seat Leon vs VW ID.3

Key Differences

Three differences stand out clearly from the data: The depth of the trunk (loading edge → trunk floor) of the SEAT Leon is 3.5 in or 56% larger than that of the VW ID.3. The width of the trunk at its narrowest point is 7.9 in or 25% larger in the VW ID.3 compared to the SEAT Leon.

At the same time, the width of the trunk opening in the SEAT Leon is 5.1 in or 14% larger than in the ID.3. Smaller differences (length with seats folded/upright, opening height, loading edge height) are each under 10%.

Impact on Usability

SEAT Leon: The significantly greater depth from the loading edge means more usable volume below the edge — advantageous for flat or stacked cargo, bulky items that should lie low, and for securely storing luggage low in the vehicle.

The wider trunk opening makes it easier to slide wide items through the opening. Overall, the Leon is better suited when storage "in depth" and wide access are important.

VW ID.3: The greater width at the narrowest point means that wider items can fit inside the trunk, even if the opening itself is narrower.

This is practical for wide but relatively flat or short loads that fit through the opening and need space inside. Because the depth dimensions of the ID.3 are significantly smaller, the volume near the floor is more limited.

Conclusion: For wider, overall more voluminous cargo inside, the ID.3 is advantageous; for more usable depth, easier loading through a larger opening, and better stacking or deeper storage, the SEAT Leon is better suited.

Smaller differences in length, opening height, and loading edge height only slightly affect everyday usability.