Trunk comparison: Audi A3 Sportback vs Opel Grandland

Key Differences (>10%)

The Opel Grandland offers a +7.9 in (13%) longer loading length with the seats folded down compared to the Audi A3 Sportback. With the front row seats upright, the Grandland's loading length is +4.7 in (16%) greater.

The loading lip of the Grandland is also +4.3 in (16%) higher above the road. The width of the trunk opening is +4.3 in (11%) larger in the Grandland.

Impact on Usability

The longer loading length with folded seats makes the Grandland significantly more suitable for long or bulky items (e.g., slats, long boxes, skis), which are less easily accommodated or only with difficulty in the A3 Sportback.

Even with normal seating (front row upright), the Grandland remains advantageous because it offers more usable loading length for everyday luggage or longer items.

The wider trunk opening facilitates loading and unloading of wide items that should fit within the interior width but would be harder to handle through the narrower opening of the A3.

The higher loading lip of the Grandland, on the other hand, makes lifting heavy items into the trunk more difficult: greater lifting effort or aids (e.g., loading assistance, rollers) are more likely needed for regular transport of heavy loads than in the lower-lying A3. This is less relevant for lighter luggage or frequent loading with suitcases.

Other differences: trunk depth (loading lip to floor) is the same, the slightly larger narrowest width (+0.8 in, 2%) and the somewhat higher trunk opening (+1.6 in, 5%) have only minor practical effects.