Trunk comparison: BMW 5 Series Touring vs Opel Grandland

Key Differences

The BMW 5 Series Touring offers a significantly longer loading length: with the seats folded down, the trunk is 8.3 in (≈12%) longer and with the first row of seats upright, 7.9 in (≈22%) longer than the Opel Grandland.

The Opel, on the other hand, has advantages in vertical dimensions: the height of the trunk opening is 4.3 in (≈16%) higher, the depth between the loading edge and trunk floor is 6.3 in (≈1500%) greater, and the loading edge is 4.7 in (≈18%) higher above the road than the BMW.

Smaller differences (≤10%) such as the narrowest trunk width (+2.4 in/6% in favor of the BMW) and the width of the trunk opening (+0.8 in/2% in favor of the Opel) are minor and hardly relevant in practice.

Impact on Usability

Due to the greater usable length in the BMW, particularly long items can be transported more easily (e.g., slats, long furniture parts, skis, bulky boxes). The BMW is better suited when flat-lying, long cargo or a larger continuous loading surface is needed.

The Opel scores with high loading volume in the vertical dimension and for bulky, taller items: the higher trunk opening allows for loading taller cargo, the greater depth creates more space below the loading edge (e.g., for deep crates, toolboxes, or bulky, tall cargo).

However, the higher loading edge makes lifting heavy items somewhat more strenuous; for people with less strength or frequent handling, the lower loading edge of the BMW is more comfortable.

In short: For long, flat, or frequently loaded and unloaded cargo, the BMW 5 Series Touring is more advantageous. For tall, bulky cargo and more vertical space, the Opel Grandland offers practical benefits. Smaller width differences are rarely decisive in everyday use.