Trunk comparison: Mercedes Benz GLB vs Opel Corsa

Key Differences

The Mercedes‑Benz GLB offers significantly more cargo length with the rear seats folded down: +17.7 in (34%) compared to the Opel Corsa.

Even with the first row of seats upright, the GLB is noticeably longer: +11.4 in (44%). The trunk opening of the GLB is higher: +5.9 in (21%), and the opening width is significantly larger: +7.9 in (23%).

In contrast, the Opel Corsa has a considerably greater depth between the loading edge and the trunk floor: +2.4 in (50%) — meaning the trunk floor sits lower.

Smaller differences include the loading edge height of the GLB (+0.8 in / 3%) and the narrowest width of the GLB (+3.5 in / 9%), which are below the 10% mark and thus less relevant.

Impact on Usability

The larger length and opening dimensions of the GLB make it significantly more flexible for long, tall, or wide cargo: long items (e.g., slats, boards, skis) are easier to transport, bulky furniture or boxes fit better through the wider and taller opening, and folded seats create noticeably more cargo space.

For situations with frequent use of large or bulky loads, the GLB is therefore better suited.

The lower trunk floor in the Opel Corsa means cargo sits further below the loading edge. This can be advantageous when smaller to medium-sized items need to be more securely positioned in the vehicle (less tipping/sliding tendency), and it creates a perceived larger storage space for low items.

At the same time, the greater depth makes lifting heavier items over the loading edge somewhat less comfortable.

In summary: For transport tasks involving length, height, or width (e.g., moving, long sports equipment, wide boxes), the GLB is clearly advantageous.

The Corsa can be practical for everyday, more compact loads due to the lower cargo floor but offers significantly less flexibility for bulky goods. Smaller differences such as the 0.8 in higher loading edge or the 3.5 in narrower narrow point are negligible for most uses.