Trunk comparison: Audi A6 Sedan vs Skoda Fabia

Key Differences
The Audi A6 offers significantly more cargo length: with the seats folded down, the A6 is 21.3 in (38%) longer and with the first row of seats upright, 16.1 in (55%) longer than the Škoda Fabia.
In contrast, the Fabia has a distinctly different vertical profile: the trunk opening is 12.6 in (64%) higher and the depth from the loading edge to the trunk floor is 2.8 in (58%) greater than in the Audi A6.
Other, smaller differences: The loading edge of the Fabia is only 0.8 in (3%) higher above the ground than the A6. The narrowest width of the trunk is 3.5 in (10%) larger in the Audi, while the width of the trunk opening is 2.4 in (6%) larger in the Fabia.
Impact on Usability
The longer cargo areas of the Audi A6 make it clearly more practical for long items and larger transport tasks: folded rear seats allow storing longer slats, furniture parts, or several large suitcases, and with the seatback upright, there is more usable depth for suitcases or sports equipment.
The Škoda Fabia scores with more vertical space and a greater floor depth. The higher trunk opening and larger depth make it easier to store tall or bulky items (e.g., boxes, plants, tall crates) and increase the usable volume in height.
Due to the slightly higher loading edge (only +0.8 in), handling very heavy items can be minimally more strenuous.
Practically speaking: Those who frequently transport long or flat items (furniture parts, skis, long boxes) clearly benefit from the Audi A6. Those who often carry tall, bulky, or voluminous loads in an upright position (large boxes, plants, bulky everyday goods) benefit from the Fabia with its higher opening and deeper cargo floor.