Trunk comparison: Mercedes Benz GLB vs Toyota Corolla Wagon

Key Differences (>10%)
The Mercedes‑Benz GLB offers significantly more vertical and lateral space in the trunk: the height of the trunk opening is +5.1 in (≈17%) higher, the depth from the loading edge to the trunk floor is +1.6 in (≈50%) larger, and the narrowest width of the trunk is +3.9 in (≈11%) larger than in the Toyota Corolla Touring Sports.
Other, Smaller Differences
The Corolla Touring Sports has a slightly longer loading area: +3.5 in (≈5%) with the seats folded down and +2.8 in (≈7%) with the first row upright. The width of the trunk opening is only marginally larger on the GLB (+1.2 in / 3%).
Impact on Usability
Due to the higher trunk opening and greater interior height, the GLB is better suited for bulky, tall items (e.g., plants, boxes, taller crates) and situations where vertical clearance is important. The larger narrowest width makes it easier to store wider loads and reduces tight spots when sliding items through.
The greater depth between the loading edge and trunk floor means the GLB has more "trunk volume below the loading edge" – this can be advantageous because items sit deeper and shift less.
At the same time, this increases the lifting height when loading: the GLB's loading edge is +3.1 in (≈13%) higher above the road, so lifting heavy loads requires more effort than in the Corolla Touring Sports.
The Corolla Touring Sports scores with slightly more usable length (with seats folded or upright). This makes it more practical for long-stemmed or flat-load items (e.g., skis, long boxes, boards), provided the lower vertical and lateral clearance is sufficient.
In short: For tall, wide, or bulky cargo, the GLB is more practical; for longer, flat-lying loads, the Corolla Touring Sports is advantageous.
Those who frequently lift heavy loads or need a lot of lateral/vertical space benefit more from the GLB; those who mostly transport long, flat items benefit more from the Corolla Touring Sports.