Trunk comparison: Mercedes Benz GLB vs Renault Clio

Key Differences

The Mercedes‑Benz GLB offers a significantly larger usable loading length: with the seats folded down, the GLB is 17.7 in (34%) longer, and with the first row of seats upright, it is 9.4 in (34%) longer than the Renault Clio.

The trunk opening of the GLB is also 5.5 in (19%) higher, which makes loading tall or bulky items easier.

Conversely, the Renault Clio has a significantly greater depth between the loading edge and the trunk floor: the depth is 25.6 in (542%) greater in the Clio. This goes along with a much lower loading edge: the GLB's loading edge is 18.9 in (200%) higher above the road than the Clio's.

Impact on Usability

For long or bulky items (e.g., skis, longer furniture parts, long boxes), the GLB clearly has the advantage: the longer cargo area with folded or upright seats plus the higher opening make it easier to accommodate such loads.

Those who regularly transport longer items or need a more flexible cargo space benefit from the GLB.

The Clio scores when handling heavy or bulky but shorter loads: the significantly deeper cargo floor and the lower loading edge mean less lifting effort when loading — heavy shopping crates, strollers, or tools are easier to lift or slide into the trunk.

Due to the shorter loading length, such transports are better suited for compact items or higher stacks rather than long parts.

Smaller Differences

The width at the narrowest point is only 1.6 in (4%) greater in the GLB, and the opening width is 2.4 in (6%) wider — both under 10% and usually negligible in practice. These small width advantages hardly change the fundamental usage profiles.

Conclusion

Those who regularly transport long or bulky items should choose the Mercedes‑Benz GLB. Those who often carry heavy but rather compact loads in the city and appreciate low lifting heights will find the Renault Clio the more practical solution.