Trunk comparison: BMW X5 vs Durchschnitt Subcompact

Biggest Differences

In comparison, the following points stand out: The trunk of the BMW X5 is 22.8 in (45%) longer when the seats are folded down and 16.1 in (65%) longer with the first row of seats upright than the average subcompact.

The narrowest width of the trunk in the X5 is 4.7 in (12%) larger, and the width of the trunk opening is even 7.1 in (20%) larger. Additionally, the depth (loading edge to trunk floor) in the average subcompact is 7.1 in (1800%) larger than in the X5.

Impact on Usability

More usable length (±45–65%): The X5 offers significantly more cargo length, both with seats folded down and with all seats in use. This means easier transport of longer items (e.g., furniture parts, skis, long construction or garden materials) and more flexibility with luggage and volume configurations.

Greater width (±12–20%): The larger narrow interior width and wider opening make loading wide or bulky items (boxes, strollers, furniture parts) easier. Items can more often be loaded directly without needing to be angled.

Loading floor depth vs. loading edge: The significantly greater depth in the subcompact (+7.1 in) means its trunk floor lies further below the loading edge—in practice, this more often requires "lifting" over the threshold, especially with heavy items.

The X5 has a comparatively flatter cargo area, which makes sliding and maneuvering luggage easier.

However, the X5's loading edge is about 2.4 in (8%) higher above the ground, so lifting from the curb or floor is slightly higher; overall, handling heavy, bulky loads is often more comfortable in the X5 because the interior is more easily accessible.

Insignificant differences: The height of the trunk opening differs by only 0.4 in (1%)—this is negligible in practical terms.

Conclusion: For users who regularly transport long, wide, or bulky cargo, the BMW X5 offers noticeable advantages through significantly more length and width as well as a flatter interior cargo area. Subcompacts more often require heavy lifting over the threshold and are less flexible with bulky items.