Trunk comparison: Audi A3 Sportback vs Opel Astra Wagon

Key Differences

The Opel Astra Sports Tourer offers significantly more loading length: with the seats folded down, the trunk is 11.4 in (19%) longer and with the first row of seats upright, the trunk is 9.8 in (32%) longer than in the Audi A3 Sportback.

In contrast, the Audi scores with slightly more interior depth: the depth of the trunk (loading edge to trunk floor) is 0.8 in (14%) greater in the Audi.

Other, minor differences include an 3.1 in (10%) higher trunk opening in the Opel, a 2.4 in (10%) higher loading edge in the Audi, a 3.9 in (10%) wider trunk opening in the Opel, and at the narrowest point, a 1.2 in (3%) greater width in the Opel.

Impact on Usability

The longer loading areas of the Opel practically mean: longer items (e.g., slats, skis, furniture parts, bicycles with the front wheel removed) can be more easily and often fully accommodated in the rear without having to adjust seats or cross-loading.

The greater length dimension also increases the usable cargo space for luggage on trips or for trade materials.

The greater depth of the Audi (loading edge → trunk floor) creates a bit more vertical space immediately behind the loading edge, which facilitates stacking tall items in a short distance and ensures smaller loads can lie deeper and more securely.

However, the loading edge in the Audi is higher above the road — making lifting heavy loads into the trunk more cumbersome than in the Astra.

Practically, this means: If you frequently transport long, bulky items or maximum loading length is important, the Opel Astra Sports Tourer is the better choice.

If it’s more about compactly stacked cargo, somewhat deeper storage, and an overall more compact handling of the load floor, the Audi A3 Sportback can offer advantages. For heavy and frequent loading, the lower loading edge of the Astra is also beneficial.