Trunk comparison: BMW i4 vs Opel Corsa

Key Differences

The BMW i4 offers significantly more cargo length: with the seats folded down, the trunk of the i4 is 17.3 in (33%) longer than that of the Opel Corsa, and with the front seat row upright, it is even 12.6 in (48%) longer.

In contrast, the Opel Corsa has a significantly greater depth from the loading edge to the trunk floor: this distance is 3.1 in (80%) larger in the Corsa than in the i4. Other differences are less than 10%: the trunk opening of the Corsa is 2.4 in (9%) higher, the narrowest width of the trunk in the Corsa is 3.1 in (9%) larger, while the width of the trunk opening in the BMW i4 is 3.1 in (9%) larger; the loading edge height is the same.

Impact on Usability

The greater cargo length of the BMW i4 makes it more practical for long or flat items (e.g., skis, long furniture parts, particle boards) and generally increases the usable length with folded seats — meaning more volume for bulky, elongated cargo.

The significantly greater depth of the Opel Corsa (distance loading edge–floor) creates a deeper cargo area below the loading edge, which is advantageous when luggage or boxes are stacked and need to be securely stored in a deeper recess; additionally, the deeper floor bed can reduce shifting of smaller cargo.

The remaining differences are minor (<10%) and have only slight practical effects: the slightly higher opening of the Corsa minimally eases sliding in tall items, the slightly larger opening of the i4 facilitates loading wider items, and the slightly greater narrowest width of the Corsa offers a little extra space for particularly wide cargo.

Conclusion: For longer, flat-loadable items and an overall longer loading area, the BMW i4 is the better choice. Those who benefit from a deeper loading floor — e.g., for secure stacking of suitcases or lower-lying cargo — will find an advantage in the Opel Corsa.