Trunk comparison: Audi Q7 vs Skoda Fabia

Key Differences
The Audi Q7 offers significantly more cargo length: with the seats folded down, the trunk of the Q7 is 24.4 in (44%) longer than that of the Škoda Fabia, and with the first row of seats upright, it is even 17.7 in (61%) longer.
At the narrowest point, the Q7 is 5.9 in (16%) wider, and the trunk opening is 8.3 in (21%) larger than the Fabia's.
The loading edge of the Q7 is also 3.9 in (15%) higher above the road surface. In contrast, the Škoda Fabia has a significantly greater depth from the loading edge to the trunk floor: this value is 7.5 in (1800%) higher in the Fabia.
The height of the trunk opening is 2.8 in (9%) larger in the Fabia than in the Q7 (not a significant difference, <10%).
Implications for Usability
For long or wide loads (e.g., slats, skis, long luggage, wide boxes, or several suitcases side by side), the Audi Q7 is clearly advantageous: the longer loading surface, the greater width at the narrowest point, and the wider opening make it easier to load bulky items and allow more flexible loading even with partially occupied seats.
However, the higher loading edge of the Q7 makes lifting very heavy items more strenuous.
The Škoda Fabia scores with its low loading edge height and large depth to the trunk floor: the lower entry height makes it easier to place heavy, compact items from the ground, and the deeper floor position can securely hold smaller items under the loading edge.
For very long or wide loads, however, the Fabia is less suitable due to the significantly shorter loading surface and narrower width.
In summary: Audi Q7 = better for long, wide, or bulky loads and more flexible family/travel loading; Škoda Fabia = more practical for frequent, low-level loading with smaller or heavy individual items in urban use.