Trunk comparison: BMW iX1 vs Durchschnitt Compact SUV

Key Differences
Three values stand out significantly: The BMW iX1 offers a +5.1 in (+17%) longer cargo floor with the first row of seats upright compared to the average compact SUV.
The width of the trunk opening is +4.7 in (+12%) larger in the iX1. In contrast, the trunk depth (distance from loading edge to trunk floor) is +4.7 in (+600%) greater in the average SUV than in the iX1.
Implications for Usability
The longer cargo floor with the rear seats upright makes the iX1 more practical for long items when the rear seats are not folded down (e.g., skis, long boxes, or ladders).
The significantly wider opening makes loading wide items easier and reduces the risk of catching on edges — practical when transporting furniture parts or bulky crates.
On the other hand, the considerably shallower depth of the iX1 limits usable space behind the loading edge: the distance from the loading edge to the floor is significantly smaller, resulting in less volume usable below the edge and less stable stacking of tall or piled cargo.
In practice, this means the iX1 is less suitable for tall loads or for easily stacking suitcases/crates directly behind the loading edge.
Smaller differences (not >10%) — the iX1 has a moderately longer storage space (+5.1 in / +9%) with the rear seats fully folded down, the average SUVs have a slightly higher opening (+2.8 in / 10%) and a marginally higher loading edge (+0.8 in / 3%).
These values only marginally affect everyday usability: slightly better headroom when reaching in with large, tall items in the average SUV and minimal extra lifting effort when loading.