Trunk comparison: BMW iX1 vs Mazda Mazda CX-5

Key Differences

The Mazda CX‑5 offers a cargo space that is 3.1 in (5%) longer with the seats folded down and 2.4 in (7%) longer with the first row upright compared to the BMW iX1. The height of the trunk opening is 2.8 in (10%) higher on the Mazda.

The depth of the trunk, measured from the loading edge to the trunk floor, is 1.2 in (+150%) greater in the Mazda — this is the most significant difference.

The loading edge of the Mazda sits 1.6 in (6%) higher above the ground. At its narrowest point, the Mazda's trunk is 2 in (5%) wider, while the width of the trunk opening is 1.2 in (3%) larger on the BMW iX1.

Impact on Usability

The only difference clearly exceeding 10% is the greater depth of the Mazda (+1.2 in / +150%). Practically, this means there is more usable space behind the loading edge in the Mazda, which makes storing tall or irregularly shaped items easier and facilitates packing denser stacks.

For long items, the Mazda’s 6–3.1 in longer cargo length also helps, especially when the rear seats are folded down.

The slightly higher trunk opening of the Mazda (+2.8 in / 10%) improves sliding in bulky items; the somewhat higher loading edge (+1.6 in) makes lifting heavy loads a bit more strenuous.

The slightly greater narrow interior width in the Mazda makes it easier to accommodate wide luggage compared to the iX1, while the BMW has an advantage with a 1.2 in wider opening when loading very wide, flat items.

Conclusion: Those who primarily benefit from more usable interior depth and overall somewhat more cargo space (e.g., when transporting tall or elongated loads) are clearly better off with the Mazda CX‑5. Those who more frequently load very wide, flat items through the opening will find the slightly larger opening width of the BMW iX1 advantageous.