Trunk comparison: Audi A4 Avant vs Opel Astra Wagon

Key Differences and Impact on Usability

The most noticeable difference is in the depth of the trunk (loading edge → trunk floor): the Audi A4 Avant is +1.2 in (≈+150%) deeper here than the Opel Astra Wagon.

Practically, this means: in the A4, the loading surface sits lower below the loading edge, increasing usable volume for deep or irregularly shaped cargo and allowing bulky items to be pushed further down.

This is advantageous when you need a lot of volume with comparatively low build height above the floor (e.g., boxes, luggage), but it slightly reduces visibility when loading and removing items lying deep down.

Other relevant differences (not over 10%, so not highlighted here): When the rear seats are folded down, the Audi A4 Avant is 6.7 in (10%) longer — beneficial for long items. With the rear seats upright, the Opel Astra Wagon has a minimal length advantage (+0.8 in, 2%).

The trunk opening of the A4 is 2.8 in (9%) higher, which helps when loading tall items; however, the loading edge of the A4 is 1.6 in (7%) higher above the road, making lifting heavy items somewhat more strenuous.

The Opel offers 3.9 in (10%) more width at the narrowest point and a 1.2 in (3%) larger opening width, which facilitates loading wider items.

Practical conclusion: Those seeking more usable volume in depth and better suitability for deep, voluminous cargo have an advantage with the Audi A4 Avant. Those who need wider items or a slightly more generous pass-through width are better served by the Opel Astra Wagon.

For very long items with the rear seat folded, the A4 has a slight advantage; when ergonomically lifting heavy cargo, the slightly lower loading edge of the Astra can be more comfortable.