Trunk comparison: Audi A6 Avant vs Opel Astra Wagon

Key Differences and Practical Consequences

Both wagons mainly differ in loading length versus usable height/depth. The Audi A6 Avant offers a longer loading area, especially when the first row of seats is upright: +5.9 in (15%) longer trunk compared to the Opel.

This means long items (skis, planks, long boxes) can be transported more easily in the A6, often even without folding down the seats. When fully folded down for furniture transport, the A6 is also somewhat longer with +7.1 in (10%), but this difference is only about 10% and thus less pronounced.

The Opel Astra Sports Tourer scores with vertical usability: the trunk opening is +4.7 in (16%) higher and the trunk depth (loading edge to floor) is significantly larger: +4.7 in (600%).

Practically, this means significantly more space for tall or bulky cargo (tall boxes, suitcases, bulky items), easier loading of upright luggage, and a deeper cargo area where items sit more stably.

Additionally, the loading edge on the Opel is slightly lower than on the Audi, which simplifies lifting heavy items in (Audi loading edge +1.2 in / 5% higher).

Width and opening dimensions differ only slightly: the narrowest trunk width is only +0.8 in (2%) larger on the Opel, and the opening width +1.2 in (3%) — both negligible for everyday usability.

Conclusion / Recommendation

Choose the Audi A6 Avant if you frequently need to transport long items without folding seats and value a longer loading area.

Choose the Opel Astra Sports Tourer if you often load tall or bulky items, want to benefit from the higher opening and significantly greater cargo depths, or prefer a lower loading edge when lifting.