Trunk comparison: VW Tiguan Allspace vs VW T-Roc

Key Differences
The VW Tiguan Allspace offers significantly more cargo space when the seats are folded down: it has a trunk that is 16.5 in (28%) longer with the seats fully folded.
Even with the first row of seats upright, the Tiguan Allspace is longer: plus 13.4 in (44%) compared to the T-Roc. In everyday use with all seats upright, however, the VW T-Roc has more trunk space: it is 12.2 in (66%) longer than the Tiguan Allspace.
Additionally, the opening height of the T-Roc is higher: plus 5.5 in (19%), and the depth of the trunk (loading edge to trunk floor) of the T-Roc is significantly greater: plus 8.7 in (2100%). The loading edge height of both models is the same; width differences are around 1% and are minor.
Impact on Usability
For transporting large or long items (e.g., furniture, long sports equipment), the Tiguan Allspace is better suited because it offers significantly more cargo length when folding down the seats and even with the first row upright.
This makes it more flexible for occasional or vacation trips where length is more important than trunk height.
The T-Roc is more practical for daily use with all seats in use and for transporting bulky but shorter items.
The higher trunk opening makes it easier to lift in bulky objects, and the significantly greater depth between the loading edge and floor creates more usable vertical volume (e.g., boxes, trolleys, or taller luggage).
For users who frequently load tall or bulky luggage, the T-Roc is therefore more advantageous in handling.
In summary: Tiguan Allspace = more length with folded seats and better for long cargo; T-Roc = better everyday trunk for tall/voluminous items and easier loading due to higher opening and significantly greater floor depth.