Trunk comparison: Audi A4 Avant vs Audi Q7

Key Differences (highlighted >10%)

The Audi Q7 offers a 7.9 in (11%) longer trunk with seats folded down and 5.5 in (13%) more length with the first row of seats upright than the A4 Avant.

The width of the trunk opening is 7.5 in (19%) larger on the Q7. In contrast, the A4 Avant has a 3.9 in (13%) higher trunk opening and a significantly greater depth (loading edge to trunk floor) — 2 in (400%) higher than the Q7. Additionally, the loading edge of the Q7 sits 5.9 in (24%) higher above the road than the A4. The narrowest width of the trunk is only slightly larger on the Q7 (+3.5 in / 9%) and thus falls below the 10% threshold.

Impact on Usability

Due to the greater cargo length and wider opening, the Q7 is better suited for long or particularly wide loads (e.g., furniture, long bicycles in unfolded state, or bulky luggage). The larger opening width makes it easier to maneuver large items sideways into the trunk.

The A4 Avant, on the other hand, scores with vertical dimensions and handling heavy loads: The higher trunk opening and greater trunk depth create more vertical space, allowing tall items to stand upright or be stacked more easily.

Furthermore, the loading edge on the A4 is lower, which makes lifting heavy or bulky items into the trunk significantly easier than with the higher Q7 sill.

Conclusion: For longer, wide, or bulky transports, the Q7 is more practical. For frequent loading of heavy items or better vertical use of the cargo space, the A4 Avant is advantageous. The small difference in the narrowest trunk width (9%) has only minor effects in everyday use.