Trunk comparison: Audi Q3 vs VW ID.4

Key Data

The measurements show only minor differences: With the seats folded down, the trunk of the VW ID.4 is 1.2 in (2%) longer, and with the first row of seats upright, it is 1.6 in (4%) longer. The trunk opening of the ID.4 is 0.8 in (3%) higher, and the width at the narrowest point is 0.4 in (1%) greater.

The loading edge of the Audi Q3, on the other hand, is 0.4 in (1%) higher above the ground, and the width of the trunk opening of the Q3 is 2 in (5%) larger. A more noticeable individual feature is the depth of the trunk (loading edge to trunk floor): the VW ID.4 is 0.4 in or 11% larger here.

Impact on Usability

The 11% greater depth in the ID.4 is the most important practical difference: it creates more usable interior height and makes stacking or accommodating taller items easier without having to lay them at an angle.

Together with the 0.8 in higher opening, this means that bulky, tall cargo is generally easier to accommodate in the ID.4.

The Audi Q3 scores points with the width of the opening (+2 in): wider items can be maneuvered more easily through the Q3's opening. For very wide cargo, the Q3 is therefore more practical, even if the interior volume in depth is somewhat smaller.

The other differences (length differences of 2–4%, loading edge height of 1%, and width differences of ~1%) are so minor that they are hardly noticeable in everyday use. The loading edge of the ID.4 is about 0.4 in lower, which minimally eases lifting heavy items but does not represent a significant comfort change.

Conclusion: For tall or stacked cargo, the VW ID.4 is advantageous due to the greater depth and slightly higher opening. For very wide items, the Audi Q3 offers easier loading options thanks to the larger opening width. Otherwise, the differences are small and often negligible for everyday use.