Trunk comparison: BMW X4 vs VW T-Roc
Key Differences (highlighted: >10%)
Length of the trunk space: The BMW X4 offers a trunk that is 9.4 in (16%) longer with the seats folded down than the VW T-Roc; with the first row of seats upright, the X4 is even 9.4 in (31%) longer.
This means: the X4 is better suited for transporting long items (e.g., furniture parts, long sports equipment) because more usable loading length is available.
Height of the trunk opening: The opening of the VW T-Roc is 6.3 in (23%) higher than that of the BMW X4. This makes loading tall or bulky items significantly easier in the T-Roc because more clearance height is available.
Depth of the trunk (loading edge → trunk floor): The VW T-Roc has a depth between the loading edge and trunk floor that is 5.5 in (175%) greater.
Practically, this means: the T-Roc offers significantly more space below the loading edge (larger storage compartment volume / deeper loading well), which is advantageous for bulky or irregularly packed loads.
Other Differences (less relevant)
The loading edge of the BMW X4 is 0.8 in (3%) higher above the road than that of the T-Roc — a small difference that slightly complicates lifting heavy items but hardly matters in everyday use.
The width at the narrowest point differs by only 0.4 in (1%) in favor of the T-Roc; also negligible. The width of the trunk opening is 3.9 in (10%) larger in the T-Roc, which supports loading wider items (this value is exactly 10% and was not highlighted in bold).
Implications for Usability — Conclusion
If you frequently need to transport long items (e.g., slats, skis, furniture parts), the BMW X4 has a clear advantage due to the longer trunk space.
On the other hand, if you often load and unload bulky or tall cargo or rely on more volume below the loading edge (e.g., shopping bags, boxes, bulky luggage), the VW T-Roc is the more practical choice: higher opening, deeper loading well, and a slightly wider opening make loading and unloading significantly easier.
Smaller differences such as loading edge height or minimally narrower interior width play only a minor role in everyday use.