Trunk comparison: BMW 3 Series Touring vs Opel Corsa

Main Differences (only values >10% highlighted)

The BMW 3 Series Touring offers a significantly greater cargo length extension: with the seats folded down, it is 33% longer than the Opel Corsa, and with the first row of seats upright, even 52% longer. The width of the trunk opening also favors the BMW: it is 16% larger than that of the Corsa.

On the other hand, the Opel Corsa has a significantly greater depth between the loading edge and the trunk floor — here it is 1700% higher (absolute difference: +6.7 in) — and the loading edge itself is 17% (≈3.9 in) higher above the ground in the Corsa.

Impact on Usability

More loading length in the BMW (±33–52%): The longer cargo area of the 3 Series Touring makes it significantly more practical for long items such as slats, skis, longer boxes, or furniture parts.

Even with the seats folded down, bulky cargo can be placed flatter and straighter — advantage BMW for moves, craft supplies, or transporting long items.

Wider trunk opening in the BMW (16%): The larger opening makes loading and unloading wider items (e.g., furniture parts, crates) easier because less maneuvering through the opening is required. Combined with the greater loading length, the BMW offers overall more flexibility for securing and placing bulky cargo.

Greater depth but higher loading edge in the Opel: The significantly greater depth between the loading edge and floor in the Corsa means more "depth" immediately behind the loading edge — this can help when stacking or storing taller items directly behind the edge.

However, this is offset by the higher loading edge: the ≈3.9 in higher entry position makes lifting heavy items more strenuous and loading bulky, heavy parts less practical.

Practically, this means the Corsa can sometimes accommodate more volume near the opening but is less comfortable when loading heavy or awkward objects.

Negligible differences: The height of the trunk opening (+1%) and the narrowest width (+1%) are minimal and have little impact on everyday usability.

Conclusion

For longer or wider cargo and more comfortable loading, the BMW 3 Series Touring is the more practical choice. The Opel Corsa offers more usable floor depth in some areas but suffers from a higher loading edge that complicates loading — making it less suitable for frequent transport of heavy or bulky items.