Trunk comparison: Mercedes Benz GLB vs Seat Tarraco

Key Differences

The most noticeable differences concern the loading length with the front seats upright and the depth of the cargo area. The SEAT Tarraco has a trunk that is 6.7 in (18%) longer with the first row upright than the Mercedes-Benz GLB.

The Mercedes-Benz GLB, on the other hand, offers a depth between the loading edge and trunk floor that is 2.4 in (100%) greater.

Other, smaller deviations: The Tarraco has +3.9 in (6%) more cargo length with the seats folded down; the GLB's trunk opening is +2 in (6%) higher; the Tarraco's loading edge is +1.2 in (4%) higher above the ground; the narrowest interior width is +1.6 in (4%) larger in the GLB; the width of the trunk opening is +3.5 in (8%) larger in the Tarraco.

Implications for Usability

Due to the 18% longer cargo space with the front seats upright, the Tarraco is better suited for long items that need to be transported without folding down the front seats (e.g., long boxes, slats, or skis). The slightly wider opening of the Tarraco (+3.5 in) also makes loading wider cargo easier.

The GLB, with its significantly greater depth between the loading edge and trunk floor, offers more vertical space in the trunk: higher stackable cargo or bulky, tall items fit better.

Additionally, the loading edge is lower on the GLB (Tarraco +1.2 in), which makes lifting heavy items easier; the slightly higher opening height of the GLB (+2 in) helps when loading tall objects.

In short: Those who frequently transport longer items without folding seats benefit from the Tarraco. Those who need more vertical storage space, an easier-to-load loading edge, and better stacking options are better served by the GLB.