Trunk comparison: Volvo XC40 vs VW ID.3

Key Differences
Two differences stand out clearly from the data: The Volvo XC40 offers with the first row of seats upright a trunk that is 4.7 in (15%) longer than the VW ID.3. In contrast, the VW ID.3's trunk depth is notable: the distance from the loading edge to the trunk floor is 6.3 in (1500%) greater than in the Volvo.
Other Technical Differences
Other measured deviations are smaller or exactly 10%: With the seats folded down, the Volvo has a cargo space that is 5.9 in (10%) longer; the width of the trunk opening is 3.9 in (10%) larger in the Volvo; the opening height of the VW ID.3 is 0.8 in (3%) higher, and the loading edge of the ID.3 is 0.8 in (3%) higher above the ground.
At the narrowest point, both trunks are equally wide.
Impact on Usability
The longer loading floor of the Volvo with rear seats upright allows transporting longer items without folding down seats – such as skis, long boxes, or furniture parts that wouldn’t fit sideways.
This makes the Volvo more practical for everyday situations where passengers remain in the back seats but long cargo still needs to be transported.
The significantly greater depth in the VW ID.3 increases the vertical volume in the cargo area: taller or better stackable cargo can be stored more easily, and items can lie deeper in the trunk.
This is advantageous for crates, bags, or tall luggage. However, a deeper recess also means that cargo lying low extends further down, making lifting during loading and unloading less comfortable.
The loading edge that is 0.8 in higher in the ID.3 makes lifting heavy loads slightly more strenuous compared to the Volvo.
The somewhat larger opening width of the Volvo (10%) facilitates loading wider items, while the identical narrowest width of both models indicates that very tight passages are equally challenging for both.
Conclusion
For regular transport of long items with occupied rear seats, the Volvo XC40 is more advantageous. Those who prefer more usable depth or higher stacking volume and can accept a slightly higher loading edge will find the VW ID.3’s interior more practical. Both models share the same limitation with very narrow items.