Trunk comparison: Audi A4 Avant vs BMW i4

Key Differences

Among the biggest differences, four values stand out: The height of the trunk opening of the Audi A4 Avant is 7.1 in (27%) higher than that of the BMW i4, the depth of the trunk (loading edge to trunk floor) of the BMW i4 is 2 in (100%) larger, the loading edge of the BMW i4 is 2.8 in (11%) higher above the ground, and the width of the trunk at the narrowest point is 4.3 in (13%) larger in the Audi.

Length differences (seats folded +4%, seats upright +7%) and the width of the trunk opening (+9%) are comparatively small.

Impact on Usability

For practical use, this means: The Audi A4 Avant is better suited for loading tall and wide items.

The significantly higher opening height and the larger narrow-point width make it easier to load bulky or large boxes, furniture parts, or sports equipment because less tilting and turning is required. Additionally, the loading edge on the Audi is lower, which reduces lifting heavy loads.

The BMW i4 offers more vertical space behind the loading edge due to the greater depth from loading edge to trunk floor: items can be placed deeper inside the cargo area, which can be advantageous for certain luggage shapes.

At the same time, the higher loading edge makes handling heavy or awkward loads more strenuous, and the lower opening height as well as narrower narrow point limit loading large or wide items.

Conclusion: Those who frequently transport large, tall, or wide cargo will find the Audi A4 Avant the more practical solution. Those who benefit from a lower cargo floor profile and can manage the higher loading edge will find the BMW i4 an alternative with a somewhat different cargo space geometry.