Trunk comparison: Mazda Mazda CX-5 vs Mercedes Benz GLB

Comparison of trunk dimensions for the Mazda Mazda CX-5 and Mercedes Benz GLB

Key Differences and Their Impact on Usability

The two vehicles show only a few significant differences in trunk dimensions; two values differ by more than 10% and are therefore practically relevant. Firstly, the trunk opening of the GLB is 3.5 in higher, which corresponds to +11%.

Specifically, this means that bulky, tall items can be loaded much more easily into the GLB — such as cases of glasses, furniture parts, or large plants. Since the opening width is the same, there is no disadvantage in width; the higher opening increases the usable height when loading.

Secondly, the depth of the cargo space (distance from loading edge → trunk floor) in the GLB is 2.8 in or +140% greater. Practically, this means the GLB has a significantly deeper cargo floor "well," creating more volume below the loading edge and allowing heavy or bulky loads to sit lower and thus more stably.

Combined with the higher opening, the GLB has a clear advantage when transporting tall and unwieldy items as well as when loading heavy goods (easier lifting over the loading edge, better weight distribution in the vehicle).

Other differences are much smaller: the CX-5 offers only 0.4 in more loading length (+1%) with the first row of seats upright, and with seats folded down, the GLB is only 2.8 in longer (+4%) — both under 10% and hardly noticeable in practice.

The loading edge of the CX-5 sits 1.6 in higher above the road (+6%), which slightly complicates lifting heavy items but is also not a major difference. The width at the narrowest point and the width of the opening are the same in both models.

Conclusion: For users who frequently need to load tall or bulky items or value a deeper cargo well for more stable loading, the Mercedes-Benz GLB is the more practical choice due to the higher trunk opening (+11%) and the significantly greater cargo well depth (+140%).

The Mazda CX-5 offers no notable advantages in trunk volume; its slightly higher loading edge can make handling heavy items marginally more difficult.