Trunk comparison: Audi A6 Avant vs Opel Astra Wagon

Key Differences and Practical Consequences

Clear advantage in cargo volume with seats folded down: With the rear seats folded down, the trunk of the Audi A6 Avant is 11.8 in (18%) longer than that of the Opel Astra Wagon.

Practically, this means long items like skis, long furniture parts, or ladders fit much more easily lengthwise in the Audi without needing to be tilted or shortened. For transport tasks where maximum loading length matters, the A6 is clearly advantageous.

With the first row of seats upright, the Audi is still 3.9 in (9%) longer, but this difference is under 10% and less noticeable — it offers slightly more usable space but changes everyday practicality less significantly.

The trunk opening of the Opel Astra is 2 in (7%) higher than that of the Audi; combined with the Astra's 3.5 in (9%) wider narrowest width and 0.4 in (1%) greater opening width, this makes loading bulky, wide items easier. These advantages are also under 10%, but are useful for storing wide boxes or furniture parts.

The trunk depth (loading edge to floor) is the same in both models. However, the loading edge of the Audi sits 2 in (8%) higher above the road than the Opel — this makes lifting heavy loads during loading somewhat more strenuous, making the Astra ergonomically more favorable here.

Conclusion: If you often transport long items or need maximum loading length, the Audi A6 Avant is the better choice.

If you more frequently need to load bulky, wide, or heavy items comfortably and lower, the slightly higher opening, larger narrowest width, and lower loading edge speak in favor of the Opel Astra Wagon.