Trunk comparison: Audi A6 Avant vs Audi Q2

Key Differences and Their Impact on Usability
The Audi A6 Avant offers significantly more cargo length: with the seats folded down, the trunk is 20.1 in (35%) longer than in the Q2, and with the front seats upright, it is even +15.4 in (50%) longer.
This makes the A6 Avant especially suitable for long items like furniture, bed slats, skis, or longer luggage; even without folding the seats, it accommodates considerably more length than the Q2.
The width of the trunk opening in the A6 Avant is 3.9 in (11%) larger, which simplifies loading wider items — boxes, tires, or larger pieces of luggage can be more easily slid in sideways. The narrowest interior width, however, differs hardly at all.
The Q2 has a significantly deeper trunk floor relative to the loading edge: the depth (loading edge to trunk floor) is 3.5 in (450%) greater.
In practice, this means that cargo sits deeper in the Q2 and can lie more stably during upright transport; at the same time, reaching the floor from the loading edge is somewhat less convenient.
Additionally, the loading edge of the Q2 is 4.7 in (19%) higher above the road, which makes lifting heavy items during loading more strenuous — together with the greater floor depth, this results in a noticeable extra effort when loading.
Smaller differences, such as the Q2's opening height being 1.6 in (5%) higher, are negligible for most everyday situations. Overall: those who frequently transport long or wide items and prefer a low, easy-to-load cargo space are better served by the A6 Avant.
Those who benefit from a deeper cargo floor (for more stable cargo positioning) and can manage higher loading edges will find the Q2 a more compact alternative.