Trunk comparison: Mercedes Benz GLB vs Skoda Octavia Wagon
Key Differences
The Škoda Octavia Wagon offers only slightly more cargo length with the seats folded down (+3.5 in / 5%) compared to the Mercedes-Benz GLB, but more relevant differences arise with the rear seats upright: the Octavia has a trunk that is 5.5 in (15%) longer, meaning more usable length without folding the seats.
On the other hand, the GLB leads in several vertical and depth measurements at the front: the height of the trunk opening is 3.9 in (13%) greater on the GLB, the trunk depth (loading edge to floor) is 0.8 in (20%) greater on the GLB, and the loading edge of the GLB sits 3.1 in (13%) higher above the road.
Width differences favoring the GLB (at the narrowest point +2 in / 5%, opening width +1.2 in / 3%) are minor and remain unhighlighted.
Impact on Usability
The longer interior length of the Octavia with the rear seats upright makes it more practical for transporting longer items without folding the seats (e.g., skis, long boxes, furniture parts on short trips).
For users who often drive fully occupied and still want to carry longer cargo, the Octavia clearly has the everyday advantage.
The GLB scores with volume in the vertical direction and interior space: the higher opening and greater depth make it easier to load tall or bulky items and offer more space when stacking.
This makes the GLB advantageous for bulky, voluminous cargo (e.g., boxes, camping gear, strollers) or when frequently transporting high-stacked loads.
At the same time, the higher loading edge of the GLB reduces convenience when lifting heavy items: loading and unloading require more strength or aids (e.g., ramps). The Octavia, with its lower loading edge, is more ergonomic when handling heavy loads and during frequent loading and unloading.
Overall: those transporting longer items without folding the rear seats benefit from the Octavia; those needing more height, interior depth, and volume for bulky or stacked cargo are better served by the GLB — albeit at the cost of a higher loading edge and somewhat more demanding handling of heavy loads.