Trunk comparison: BMW 3 Series Touring vs Opel Astra Wagon

Key Differences

In the Opel Astra Sports Tourer, two dimensions are significantly larger than in the BMW 3 Series Touring: The height of the trunk opening is +5.1 in (18%) higher, and the depth of the trunk (loading edge to trunk floor) is +5.1 in (1300%) greater.

These two values exceed the 10% threshold and are therefore practically relevant.

Impact on Usability

The higher trunk opening makes loading and unloading tall or bulky items (e.g., suitcases, strollers, furniture) easier because more vertical space is available and folding parts are less likely to hit.

The significantly greater depth between the loading edge and trunk floor means the cargo area is deeper or there is more volume below the loading edge; practically, this results in more storage space for stackable or low-lying cargo and a more stable position for loaded items.

Overall, the Astra is clearly more practical for users who frequently transport tall, bulky, or many stacked goods.

Other, Smaller Differences

Smaller deviations favoring the Opel: with folded seats, the trunk is +1.2 in (2%) longer, and with the first row of seats upright, +0.8 in (2%) longer.

The width at the narrowest point and the width of the trunk opening are each +2.8 in (7%) larger, and the loading edge sits +0.4 in (2%) higher above the road.

These differences slightly improve loading (a bit more width, minimally longer loading surface) but are less noticeable in everyday use than the two large differences mentioned above.

Conclusion

For regular loading of large, tall, or irregularly shaped items, the Opel Astra Sports Tourer has a clear advantage due to the significantly higher opening and much greater depth.

For normal use with average luggage, the models are functionally similar; smaller advantages in length and width also slightly favor the Astra but have less impact.