Trunk comparison: Skoda Fabia vs Skoda Superb Wagon

Key Differences
The biggest differences in usable cargo space are in length: the Škoda Superb Wagon offers a cargo area that is 28.3 in (+51%) longer with the seats folded down and 12.6 in (+43%) longer with the first row of seats upright than the Škoda Fabia.
The depth of the trunk measured from the loading edge to the trunk floor is 4.3 in (+138%) greater in the Fabia, and the Fabia’s loading edge is 3.5 in (+15%) higher above the ground than that of the Superb Wagon.
The height of the trunk opening is the same for both models; the narrowest width inside the trunk is 3.1 in (9%) greater in the Superb Wagon, and the width of the trunk opening is 2.4 in (6%) wider — these values are below the 10% mark and thus less significant.
Impact on Usability
The Superb Wagon is clearly advantageous when it comes to transporting long or bulky items: the significantly greater loading length with folded seats and also with the rear seats upright allows loading long items (e.g., furniture, long boards, bulky boxes) without complicated rearranging.
The slightly greater minimum width and larger opening width support loading wider parts but are only marginal advantages.
The Fabia, on the other hand, has a significantly higher loading edge and a greater "depth" from the loading edge to the trunk floor.
Practically, this means heavy cargo must be lifted higher in the Fabia, making loading more strenuous; at the same time, the cargo sits lower in the trunk, which can provide better stability and less shifting when transporting smaller or unstable items.
Due to the shorter loading length, the Fabia is less suitable for long items.
In summary: For regular transport of long or bulky cargo, the Superb Wagon is the more practical choice. The Fabia offers advantages for smaller luggage and a deeper cargo area in terms of securing items but pays for this with a higher loading edge and a significantly limited loading length.