Trunk comparison: Mercedes Benz GLC vs Opel Astra Wagon

Key Differences
The comparison reveals three deviations clearly exceeding ten percent: The Opel Astra Wagon has a trunk that is 5.5 in (15%) longer with the first row of seats upright than the Mercedes-Benz GLC. The trunk depth (distance from loading edge to trunk floor) is 0.8 in (100%) greater in the Astra.
The loading edge of the Mercedes-Benz GLC is 4.7 in (20%) higher above the road than that of the Astra.
Smaller differences: with the seats folded down, the GLC is 3.5 in (5%) longer, the trunk opening of the Astra is 0.8 in (3%) higher, the width at the narrowest point in the GLC is 0.4 in (1%) greater, and the opening width in the GLC is 2 in (5%) larger.
Impact on Usability
Opel Astra Wagon — Everyday and Loading Comfort: The 15% greater usable length with the rear seat upright makes the Astra more practical for daily transport of luggage, groceries, or strollers without folding the seats.
The greater depth (0.8 in more) increases the usable interior space directly behind the loading edge and makes it easier to store bulky or tall items on the trunk floor. Together with the significantly lower loading edge, the Astra offers noticeably easier loading and unloading overall, especially with heavy loads.
Mercedes-Benz GLC — Advantages for Long or Wide Loads: The higher loading edge of the GLC makes lifting heavy items into the vehicle more difficult and is a disadvantage for frequent loading.
However, the GLC offers somewhat more loading length with folded seats and a slightly larger opening width as well as marginally more width at the narrowest point, which improves loading very wide items.
For users who often transport long items and regularly fold down the rear seats, the GLC has a slight advantage; for everyday use with the rear seat intact and lifting heavy loads, the Astra is more practical.
Conclusion: For comfortable, frequent loading and unloading as well as use with the rear seat upright, the Opel Astra Wagon has the advantage due to its lower loading edge, greater depth, and longer trunk.
The Mercedes-Benz GLC scores more for occasional transport of longer items and with somewhat larger opening dimensions.