Trunk comparison: Seat Ibiza vs Seat Tarraco

Key Differences and Impact on Usability
The Seat Tarraco offers a significantly longer cargo length: with the seats folded down, its cargo area is 18.1 in (33%) longer than the Seat Ibiza, and with the first row of seats upright, it is even 17.3 in (65%) longer.
This makes the Tarraco much more practical for long or bulky items (e.g., furniture boards, skis, or long boxes) as well as for trips with a lot of luggage.
Additionally, the Tarraco's trunk opening is 10.6 in (31%) wider, which greatly facilitates loading and unloading wider items and reduces maneuvering when loading.
In contrast, the Seat Ibiza has a significantly greater trunk depth (distance from loading edge to trunk floor): it is 5.1 in (217%) larger than the Tarraco.
This means smaller or loose items lie deeper in the cargo space and shift less; the storage area thus feels "deeper" and is better suited for securely stowing luggage or groceries.
However, this deeper well cannot compensate for the Ibiza's shorter length and narrower opening, so very long or wide loads hardly fit or only with restrictions.
In summary: For long, wide, or bulky transports as well as family and leisure use, the Tarraco is the more practical choice (more length and significantly wider opening). The Ibiza offers advantages in securing smaller or loose cargo due to the deeper cargo floor but is less suitable for bulky or long loads.