Trunk comparison: Skoda Superb Wagon vs VW Passat Wagon

Key Differences
Both wagon models are close to each other but show noticeable strengths for different uses.
The Škoda Superb Wagon offers a cargo floor length that is +4.7 in (6%) longer than the Volkswagen Passat Wagon with the seats folded down, while the Passat has +2.8 in (7%) more interior length with the first row of seats upright.
The trunk opening of the Superb is +1.2 in (4%) higher, whereas the loading edge of the Passat is +2 in (8%) higher above the ground. The narrowest width of the cargo area is the same for both, and the opening width of the Superb is only +0.4 in (1%) larger.
The depth of the trunk (loading edge to trunk floor) is +0.4 in (13%) greater in the Volkswagen Passat Wagon than in the Škoda Superb Wagon. This difference exceeds 10% and is therefore the most noticeable relative advantage in the measurements.
Impact on Usability
The +0.4 in (13%) greater depth in the Passat means relatively more space between the loading edge and the trunk floor. Practically, this means that in the Passat, slightly taller items can be positioned closer to the floor or stacked more easily, improving usable cargo space for bulky or tall loads.
However, since this is only 0.4 in in absolute terms, the advantage is small and often barely noticeable in everyday use.
The higher loading edge height of the Passat (+2 in) makes lifting heavy items into the trunk somewhat more strenuous, so the slight depth advantage is partially offset by the increased loading effort.
The Superb scores with the pure usable length with folded seats (+4.7 in)—advantageous for long goods like slats, furniture parts, or skis—and with the slightly higher opening (+1.2 in) when loading bulky, tall items.
Conclusion: For frequent transport of very long items with folded seats, the Škoda Superb Wagon is better suited.
For slightly more usable floor depth and somewhat better room for stacking tall cargo, the Volkswagen Passat Wagon offers a relative advantage that is hardly dominant in everyday use due to the small absolute difference and the higher loading edge.