Trunk comparison: Mercedes Benz GLB vs Opel Astra Wagon

Key Differences

Opel Astra Wagon offers a trunk that is +4.7 in (≈13%) longer with the first row of seats upright. Mercedes‑Benz GLB has a trunk opening that is +3.9 in (≈13%) higher, a significantly greater depth between the loading edge and trunk floor (+3.9 in / ≈500%), and a loading edge that is +5.1 in (≈22%) higher above the road.

Impact on Usability

The longer usable loading length in the Astra with seats upright makes it more practical when you want to transport long items without folding down the rear seats (e.g., skis, slats, long furniture parts). This increases everyday usability for family or craft-related tasks where seating and length are both needed.

The GLB offers more space for tall or bulky cargo due to the higher opening and significantly greater depth behind the loading edge. This makes it easier to store bulky boxes, taller luggage, or items that require more interior height or depth.

However, the significantly higher loading edge means heavy cargo must be lifted higher – making loading and unloading physically more demanding compared to the Astra.

Smaller differences (e.g., width at the narrowest point: Astra +1.6 in, width of the opening: GLB +0.4 in) are under 10% and have only minor practical effects on usability.