Trunk comparison: Audi A4 Avant vs Opel Grandland

Key Differences

The Audi A4 Avant has a longer trunk by 6.3 in (≈18%) with the front seat row folded down compared to the Opel Grandland.

The Opel Grandland, on the other hand, offers a significantly lower loading floor (distance from loading edge → trunk floor) and a higher loading lip: the depth is 4.3 in (≈220%) greater, and the loading lip is 5.9 in (≈24%) higher than in the Audi.

All other dimensions (trunk length with seats folded +8%, opening height +5%, opening width +6%, narrowest width +2%) are below the 10% mark and therefore less decisive.

Impact on Usability

Loading lengths: Due to the ≈18% greater usable length with the first seat row upright, the Audi A4 Avant is better suited for regularly transporting long items (e.g., slats, skis, furniture parts) without having to fold down seats.

Loading height and handling: The ≈24% higher loading lip of the Opel makes lifting heavy or bulky loads into the vehicle noticeably more strenuous than in the Audi. Those who frequently load and unload heavy groceries, strollers, or boxes have the ergonomic advantage of a lower loading lip with the Audi.

Vertical space: The significantly greater depth in the Opel (≈220%) means more space below the loading lip – useful when items are to be stored not only lengthwise but also higher or deeper (e.g., taller stacks, deep boxes).

However, combined with the higher loading lip, this results in a compromise: more trunk volume but more difficult access.

Width/opening: Since the opening width and the narrowest point differ only slightly (<10%), width plays hardly any role in the everyday usability of both models.

Conclusion

In short: Audi A4 Avant = better for longer loads and easier loading/unloading (lower loading lip). Opel Grandland = more vertical trunk space but with a significantly higher loading lip, resulting in reduced loading comfort for heavy or frequent loads.