Trunk comparison: BMW X4 vs Mercedes Benz GLC
Biggest Differences
The most noticeable differences concern the vertical dimensions of the trunk: The depth of the trunk (loading edge to trunk floor) of the BMW X4 is 3.1 in (≈700%) greater than that of the Mercedes‑GLC. Additionally, the loading edge of the BMW X4 is 3.1 in (≈11%) higher above the ground than the GLC.
Other, smaller deviations: the BMW has a trunk length 3.5 in (10%) longer with the rear seats upright, the GLC offers 1.2 in (2%) more length with the seats folded down; the trunk opening of the GLC is 2.4 in (9%) higher, its narrowest loading width is 3.9 in (10%) larger, and the opening width is 2.8 in (7%) larger.
Practical Effects on Usability
Due to the much greater trunk depth in the BMW X4, tall or bulky items can be pushed further inside the vehicle, improving usable space lengthwise and stacking of tall loads.
The very high percentage difference indicates that the GLC has very little depth in this specific detail; practically this means: in the X4, long/deep items slide further inside, in the GLC they remain closer to the loading edge.
The higher loading edge in the BMW X4, on the other hand, makes lifting heavy items when loading more difficult and increases the effort required to lift over the loading edge. For frequent loading of heavy boxes, bicycles, or bulky loads, the GLC with its lower loading edge is more ergonomic and comfortable.
The wider dimensions of the GLC (wider narrowest point and larger opening width) make it better suited for wide loads or when items need to be fitted in sideways. The slightly greater opening height of the GLC makes loading tall items a bit easier, but this is only +9% compared to the X4.
The 3.5 in longer loading floor of the BMW with the rear seats upright (10%) speaks for an advantage in everyday transport of longer items without folding the seats; the slight advantage of the GLC with folded seats (+1.2 in) is marginal in practice.
Conclusion — Which Choice for Which User?
- If you often push deep or tall stackable cargo into the vehicle and the shape of the trunk is important: BMW X4. Note the higher loading edge for heavy loads.
- If you often load heavy or wide cargo without much lifting or transport wide items: Mercedes‑GLC is more advantageous due to the lower loading edge and wider widths.
- For mixed use, the combination decides: X4 offers more interior depth, GLC better ergonomic access and wider trunk openings.