Trunk comparison: Fiat Panda vs VW Tiguan Allspace

Key Differences
The VW Tiguan Allspace offers significantly more cargo length with the seats folded down: +31.1 in (+71%) compared to the Fiat Panda. The difference is similar when the first row of seats remains upright: the Tiguan has +22.8 in (+107%) more length.
In everyday use with all seats upright, however, the Fiat Panda has an advantage in cargo length: +2.8 in (+15%) compared to the Tiguan.
Regarding the opening and depth of the trunk, the Panda scores points: the height of the trunk opening is +6.3 in (+22%) higher, and the depth measured from the loading edge to the trunk floor is +7.1 in (+1700%) greater than in the Tiguan.
The Tiguan's loading edge, on the other hand, is +3.1 in (+12%) higher above the ground, which makes lifting cargo more strenuous. The width of the trunk opening is +5.5 in (+14%) larger in the Tiguan; the narrowest internal width differs by only 0.4 in (Panda +0.4 in / 1%), so it is negligible.
Impact on Usability
For long items and larger cargo areas with folded seats, the Tiguan Allspace is clearly advantageous: the significantly longer cargo space (with folded seats and upright first row) makes it much easier to transport long items like slats, furniture parts, or skis.
The Fiat Panda is more practical in everyday use for bulky, taller items and frequent manual loading and unloading: the higher trunk opening combined with the greater depth (more distance between loading edge and floor) means more vertical space in the trunk, and the lower loading edge reduces the effort required when loading.
This makes the Panda ergonomically better suited for crates, shopping bags, or bulky boxes.
The wider opening of the Tiguan (+5.5 in) facilitates loading wider parts, while the nearly identical internal width at the narrowest point (±0.4 in) hardly matters in practice.
Overall: Tiguan for longer/more extensive transports with folded seats; Panda for simple, ergonomic daily and city loading with more usable height and easier access.