Trunk comparison: BMW X4 vs Durchschnitt Wagon
Key Differences
Three differences stand out clearly from the data: the height of the trunk opening is +3.5 in (13%) higher in the average wagon than in the BMW X4, the depth of the trunk (loading edge → trunk floor) is +1.6 in (100%) greater in the BMW X4, and the loading edge of the BMW X4 is +6.3 in (25%) higher above the road than in the average wagon.
All other deviations (length with folded seats: 1%; length with front seats upright: 2%; narrowest width: 4%; opening width: 1%) are minor and thus usually negligible in everyday use.
Impact on Usability
Higher trunk opening in the wagon (+3.5 in / 13%): This greater loading height at the opening makes it easier to load tall items (e.g., upright furniture, large boxes, plants) because less tilting or turning is required.
People need to adjust or angle less often when loading tall cargo, and the risk of hitting the edge is lower.
Deeper cargo floor in the BMW X4 (+1.6 in / 100% between loading edge and floor level): A greater depth behind the loading edge means items can be "sunken" further into the cargo area.
This increases securing options (lower center of gravity) and creates a perceived increase in usable interior height behind the loading edge once items are pushed inside. This can be practical for bulky but not overly tall loads.
Higher loading edge in the BMW X4 (+6.3 in / 25%): The significantly higher loading edge makes lifting heavy items more strenuous—especially bulky or heavy loads (furniture, full crates).
A lower wagon sill is more back-friendly and makes setting down and picking up loads easier. Campers, craftsmen, or anyone regularly loading heavy items therefore benefit from the wagon.
Interaction of differences: The wagon offers fewer overall restrictions when loading tall parts due to the higher opening and is gentler on the back because of the lower loading edge.
The BMW X4 compensates with a deeper cargo floor that holds loaded items more stably and somewhat "sunken"—practical for storing and securing cargo but not for easy lifting into the vehicle. Since length and width differ only minimally in practice, parking or packing strategies between the models hardly change.
Conclusion: Those who frequently load tall items or heavy loads and value easy handling have a practical advantage with the average wagon. Those who value a somewhat deeper, more secure cargo floor and generally work with already lifted or lighter items find advantages in the BMW X4 despite the higher loading edge.