Trunk comparison: Opel Corsa vs VW Tiguan

Key Differences
The VW Tiguan offers significantly more cargo space in length: with the seats folded down, the Tiguan's trunk is +15.7 in (≈30%) longer, and with the first row of seats upright, it is +8.7 in (≈33%) longer than the Opel Corsa.
The width of the trunk opening is also noticeably larger in the Tiguan: +9.1 in (≈27%). In contrast, the Opel Corsa has a significantly greater depth between the loading edge and the trunk floor: +6.7 in (≈1700%) compared to the Tiguan.
Smaller differences (below 10%) include: the loading edge of the Tiguan is +1.6 in (≈6%) higher above the road than the Corsa, the narrowest width inside the Tiguan's trunk is +2 in (≈5%) larger, and the height of the trunk opening differs by only +0.4 in (≈1%).
Implications for Usability
Volume and length: Due to the significantly greater length with folded or upright seats and the noticeably wider opening, the Tiguan is better suited for long or bulky items (e.g., furniture parts, long boxes, bicycles with the front wheel removed). The larger opening width makes loading wide items much easier.
Loading height and handling: The Tiguan's loading edge is about 1.6 in higher off the ground, meaning heavy items must be lifted slightly higher; this can make loading and unloading heavy loads somewhat more difficult. The Corsa's loading edge is lower, which facilitates lifting heavy objects in.
Trunk depth (loading edge → floor): The Corsa has a significantly greater depth below the loading edge. Practically, this means the trunk floor in the Corsa sits deeper below the loading edge, causing small or loose items to more easily "sink" and be harder to reach.
At the same time, this deeper area can help place bulky items lower, thus lowering the center of gravity. Overall, however, the Tiguan offers a more flexible and practical cargo area for most everyday and transport tasks due to its length and opening width.
Interior width: The difference at the narrowest point is small; tight, bulky items may fit more snugly in the Corsa, but in many cases, the Tiguan remains advantageous here as well.
Conclusion
For regularly transporting long or wide items, the VW Tiguan is the better choice (longer cargo space, larger opening).
For easier lifting of heavy items and when a deep trunk floor is needed, the Opel Corsa can offer advantages but overall loses practical utility with bulky loads due to its shorter length and smaller opening width.