Trunk comparison: Mercedes Benz GLB vs VW ID.4

Key Statement

The most noticeable difference concerns the trunk depth: the Mercedes‑Benz GLB has 0.8 in or 20% more distance from the loading edge to the trunk floor than the VW ID.4. This greater depth means more usable volume in the vertical direction — especially for tall or bulky loads, this provides tangible advantages when storing and stacking.

Further Differences and Their Impact

The loading edge of the VW ID.4 is 0.8 in (3%) higher above the road; the GLB is therefore slightly lower, making it easier to lift heavy items when loading. The trunk opening of the GLB is 3.1 in (10%) higher than that of the ID.4, which supports loading tall items (this value is exactly 10%).

In width, the GLB shows +1.6 in (4%) at the narrowest point compared to the ID.4, while the opening of the ID.4 is slightly wider (+0.4 in / 1%). With the rear seats folded down, the GLB offers a cargo space 3.1 in (5%) longer; with the first row of seats upright, the difference is only 0.4 in (1%).

Practical Conclusion

For users who frequently transport tall or bulky items or often have to load heavy loads, the GLB is more advantageous: the significantly greater trunk depth combined with the slightly lower loading edge makes loading easier and offers more stackable volume.

Those who primarily value a slightly wider opening or only occasional, less tall loads will hardly notice the differences — most differences are small (<10%) and have only a marginal effect in everyday use.