Trunk comparison: Volvo V90 vs VW Taigo

Key Differences
The Volvo V90 offers a significantly larger cargo volume with the rear seats folded down: +15 in (24%) longer than the VW Taigo. Even with the front seats upright, the V90 is +12.6 in (39%) longer. The width of the trunk opening is also noticeably larger on the V90 by +5.9 in (15%).
In favor of the Taigo, three values stand out: The height of the trunk opening is +3.9 in (14%) greater on the VW Taigo, the depth between the loading edge and the trunk floor is +7.9 in (1900%) greater on the Taigo, and the loading edge is +5.5 in (23%) higher above the ground on the Taigo.
The narrowest trunk width on the V90 is indeed 6% larger, but this difference (<10%) is minor and less relevant.
Impact on Usability
Practical effect: The Volvo V90 clearly has the advantage for long and wide cargo — furniture, long packages, skis, or multiple suitcases can be better accommodated and more easily moved sideways through the larger opening.
The larger opening and longer loading area increase everyday usability for transporting flat, long loads.
The VW Taigo offers a better loading height for very tall items and more vertical space due to the higher trunk opening and significantly greater depth.
However, the loading edge on the Taigo is considerably higher, which makes lifting heavy items more difficult and can be more tiring during frequent loading and unloading.
The greater "well depth" (loading edge → floor) can be useful for bulky, tall items but reduces ergonomics when handling heavy loads due to the higher loading edge.
In summary: Those who frequently transport long or wide cargo and want easy loading are better served by the Volvo V90. Those who occasionally transport tall items and benefit from a higher opening may prefer the VW Taigo but must accept a higher loading edge.