Trunk comparison: BMW X3 vs Mazda Mazda CX-5
Summary of Differences
The BMW X3 offers a cargo area that is 3.1 in (≈5%) longer with the seats folded down, while in the normal state the trunk of the Mazda CX‑5 is 0.4 in (≈1%) longer. The height of the trunk opening is the same for both models.
. The loading edge of the Mazda is also 2.4 in (≈9%) higher above the ground than the BMW. At the narrowest point, the trunk of the BMW X3 is 2 in (≈5%) wider, and the opening itself is 2.4 in (≈6%) wider on the BMW than on the Mazda.
What are the practical implications?
The significantly greater depth in the Mazda (highlighted) means more vertical space below the loading edge: this can help to partially "sink" taller or bulky items and thus store them better. At the same time, the deeper cargo floor combined with the higher loading edge (2.4 in higher) makes lifting heavy loads onto the cargo area more strenuous and loading flat items over the threshold more cumbersome. The BMW scores with greater width at the narrowest point and a wider trunk opening. This makes it easier to load wider luggage or bulky items (e.g., suitcases, strollers, larger boxes). The slightly lower loading edge of the BMW makes lifting into the vehicle easier and reduces the effort required when loading. The slight length advantage of the X3 with folded seats is only a minor benefit for very long items. Since the opening height is the same, both vehicles are similarly suitable for very tall items in the vertical direction; the practical usability mainly differs due to the different cargo floor geometry (Mazda: deeper floor, higher threshold; BMW: wider opening, lower threshold).