Trunk comparison: BMW i4 vs Opel Astra Wagon

Key Differences

The Opel Astra Sports Tourer offers significantly more practicality in several dimensions compared to the BMW i4. Particularly notable is that the height of the trunk opening on the Astra is 7.1 in (27%) larger, as well as the depth of the trunk measured from the loading edge to the trunk floor, which is 1.6 in (40%) larger on the Astra.

The narrowest trunk width is 5.5 in (16%) larger on the Astra, and the width of the trunk opening is 5.1 in (14%) larger than on the i4. At the same time, the loading edge of the BMW i4 is 3.5 in (15%) higher above the road than on the Astra.

Impact on Usability

The larger trunk opening and wider dimensions of the Astra make loading and unloading bulky or wide items (boxes, strollers, bicycle accessories) easier. Due to the 14–5.1 in greater interior and opening width, wide loads can be pushed in more easily or turned sideways.

The significantly greater depth from loading edge to trunk floor on the Astra (1.6 in / 40%) means more usable interior height or a deeper cargo floor, allowing taller stacked or irregularly shaped items to be stored better. The 27% higher opening additionally provides more vertical clearance when loading tall items.

In contrast, the higher loading edge of the BMW i4 makes lifting heavy items more strenuous and increases the risk that bulky items get caught on the opening when loading. The narrower width and opening size of the i4 limit the allowance for wide loads and reduce flexibility when loading.

The differences in trunk length with folded seats (+1%) or with the first row upright (+4%) are minor and have practically no effect. Overall, the Astra Sports Tourer is clearly advantageous in terms of loading accessibility and width, while the BMW i4 shows limitations with heavy or wide cargo.