Trunk comparison: Audi A6 Sedan vs Seat Ibiza

Key Statement
The Audi A6 offers significantly more cargo length, while the SEAT Ibiza has a considerably higher trunk opening and more interior height. These differences affect which type of luggage or cargo is easier to transport.
Main Differences
With the seats folded down, the Audi A6 is 21.3 in (38%) longer, meaning it can accommodate significantly longer items than the Ibiza. With the front seat row upright, the A6's advantage is even 18.5 in (69%), so it also offers considerably more cargo length in normal passenger use.
The SEAT Ibiza has a trunk opening that is 12.6 in (64%) higher than the A6; additionally, the depth of the trunk (loading edge to floor) in the Ibiza is 2.8 in (58%) greater. This means more usable interior height and a larger loading volume in the vertical direction.
Smaller differences: The loading edge of the Ibiza is only 1.2 in (5%) higher above the road, the narrowest width in the A6 is 1.2 in (3%) larger, and the width of the opening in the A6 is 2.4 in (7%) larger — these values are comparatively minor and hardly decisive.
Implications for Usability
- For long, flat, or bulky items (e.g., skis, long wooden slats, bicycles with the front wheel removed), the Audi A6 is the better choice because its significantly greater cargo length provides more space even with normal seat use.
- For bulky, tall, or stackable cargo (e.g., crates, boxes, large shopping loads, items with greater height), the SEAT Ibiza is advantageous, thanks to the significantly higher opening and greater interior height, making it easier to load and stack bulky goods.
- The slightly higher loading edge of the Ibiza (1.2 in) makes lifting easier but is hardly relevant in everyday use; the width differences are too small to significantly influence the decision.
Conclusion
Choose the Audi A6 if length and transporting long items are a priority. Choose the SEAT Ibiza if you frequently load tall or bulky items and a higher opening dimension and more interior height are important.