Trunk comparison: Skoda Superb Wagon vs VW Touran

Key Differences and Impact on Usability
The Škoda Superb Wagon offers significantly more cargo space in length and depth: when all seats are folded down, the trunk of the Superb is 13.4 in (19%) longer, and when all seats are upright, it is even 28.3 in (212%) longer in the front.
Additionally, the depth of the trunk (distance from loading edge to trunk floor) is 2.8 in (700%) greater in the Superb.
These three differences together practically mean: the Superb can transport much longer items (e.g., furniture, long packages, skis)—both with folded seats and full seating—and offers more usable volume and a lower center of gravity for the cargo due to the deeper loading floor.
The VW's strengths lie in smaller but noticeable details: the trunk opening of the Touran is 1.6 in higher, the narrowest width inside the cargo area is 1.6 in larger in the Touran, and the loading edge is 1.2 in higher above the ground.
Practically, this means: loading very tall or wide-tapering items is somewhat easier in the Touran due to the higher opening and slightly larger cross sections; however, the higher loading edge makes lifting heavy loads minimally more strenuous than in the Superb.
Conclusion: Those who primarily want to transport long or bulky cargo—even with full occupancy—clearly benefit from the Škoda Superb Wagon. Those who more often load very tall or bulky but not particularly long cargo and prefer a slightly higher loading edge/opening are slightly better off with the VW Touran.