Trunk comparison: Audi A4 Avant vs Nissan Rogue Sport

Key Differences
The Audi A4 Avant offers 11% more trunk length with the seats folded down (+7.1 in) and 21% more trunk length with the first row upright (+7.1 in) compared to the Nissan Qashqai.
For the Nissan, the trunk depth (loading edge to floor) is 20% greater (+0.4 in) and the loading edge is 22% higher above the road (+5.5 in) than the Audi.
The other differences are smaller or equal to 10% (opening height Audi +2 in / 6%, narrowest width Nissan +2 in / 5%, opening width Nissan +3.9 in / 10%) and are not highlighted here.
Implications for Usability
Audi A4 Avant: The significantly longer cargo areas (both with folded seats and upright seat row) make the A4 more practical for long items (e.g., slats, skis, furniture parts) and for luggage that can be laid lengthwise.
Additionally, the lower loading edge makes lifting heavy or bulky loads easier when loading and unloading.
Nissan Qashqai: The slightly greater trunk depth means the cargo space is marginally "deeper" and cargo can sink a bit better into the floor area; however, this advantage is minimal (only +0.4 in).
More noticeable is the higher loading edge: loading heavy items requires more effort and is less comfortable. Positive for very wide items is the larger opening width (not >10%), which can make inserting wide parts easier.
In summary: For longer cargo and more ergonomic loading, the Audi A4 Avant is advantageous. The Nissan offers a marginally deeper cargo floor and a slightly wider opening, which can provide practical benefits for certain wide items, but suffers from the significantly higher loading edge.