Trunk comparison: Audi Q7 vs VW Golf Wagon (Mk5)

Key Differences
In terms of cargo volume and loading opening, the Audi Q7 shows clear advantages: the Q7 has +13 in (19%) more cargo length with the seats folded down and +5.5 in (13%) more cargo length when the first row remains upright. The loading opening is also significantly wider on the Q7: +7.9 in (20%) compared to the Golf.
In contrast, the depth from the loading edge to the trunk floor favors the Golf: the VW Golf 5 has +2 in (400%) more depth here. Additionally, the loading edge of the Audi Q7 sits +5.5 in (22%) higher above the road than the Golf.
Impact on Usability
Due to the greater cargo length (both with folded seats and with the first row upright) and the significantly wider loading opening, the Audi Q7 is better suited for long or bulky items (e.g., furniture parts, long slats, bicycles without disassembly). The wider opening simplifies loading and unloading bulky items.
The higher loading edge of the Q7 makes lifting heavy items more strenuous and can complicate loading heavy loads. Here, the Golf has an advantage with the lower loading edge for easier placing and lifting of heavy objects.
The greater depth of the Golf (more distance between the loading edge and trunk floor) means that items lie deeper in the vehicle and can therefore be better "stored" with short cargo length — this partially compensates for the shorter length measurement with small or medium-sized luggage.
For heavier, flatter loads, the Golf is more practical; for long, bulky loads, the Q7 is clearly better.
Minor differences such as the +0.4 in higher trunk opening or the +3.1 in (8%) greater width at the narrowest point of the Q7 are of little everyday relevance compared to the points mentioned above.