Trunk comparison: BMW X1 vs BMW X5

Key Differences

The BMW X5 offers a significantly larger cargo space: with the seats folded down, it is +8.7 in (13%) longer, and with the first row upright +5.5 in (16%) compared to the BMW X1. The height of the trunk opening of the X5 is +3.1 in (11%) higher, providing more vertical space for loading and unloading.

At the same time, the loading edge of the X5 is +3.1 in (11%) higher above the road, while the BMW X1 has a greater depth between the loading edge and the trunk floor (+0.8 in, stated as 200%), meaning a lower trunk floor area.

Impact on Usability

Due to the longer loading surfaces of the X5, its trunk dimensions are better suited for long items (e.g., skis, long furniture pieces, lumber) and for larger cargo volumes with the seats folded down. The higher trunk opening also allows easier stowing of tall items without hitting the sides of the opening.

The higher loading edge of the X5 makes lifting heavy loads more demanding — loading heavy boxes or bulky items requires more strength or a ramp/lifting aid.

The X1 scores here with a lower loading edge (easier lifting) and at the same time a deeper floor position in the trunk: items sit lower, which can make stacking more stable and, with slightly higher overall height, can compensate the usable interior height.

Width differences (at the narrowest point +3.5 in / +9% and opening width +0.8 in / +2% in favor of the X5) are minor and have much less practical impact.

Conclusion: For transport tasks involving long or tall loads, the X5 is the better choice. For frequent lifting of heavy loads or easy everyday loading, the X1 can be more practical because the loading edge is lower and the trunk floor is deeper.