Trunk comparison: BMW X4 vs Durchschnitt SUV

Key Differences

The BMW X4 differs significantly from the average SUV in two main aspects: with the front seats upright, the X4's trunk is +6.7 in (20%) longer, and the trunk depth (loading edge → trunk floor) is +1.2 in (60%) greater in the X4.

Other differences are in the single-digit or around 10% range: the X4 has +4.3 in (7%) more length with the seats folded down, the average SUV's trunk opening is +2.8 in (10%) higher, the width at the narrowest point and the opening width are each +1.2 in (≈3%) larger in the average SUV, and the X4's loading edge is +1.6 in (≈5%) higher above the ground.

Impact on Usability

The significantly greater length with the rear seat upright (+6.7 in / 20%) makes the X4 more practical for longer items in everyday use (e.g., skis, long boxes, plywood sheets) without needing to fold down the seats.

The greater trunk depth (+1.2 in / 60%) increases usable vertical volume and allows for deeper placement or more stacking height within the loading edge.

However, these advantages are limited by the narrower opening and lower opening height: wider or bulky goods are easier to load in the average SUV because the opening width and height are somewhat larger there.

Additionally, the higher loading edge in the X4 (+1.6 in) requires more effort when lifting heavy items into the vehicle.

Conclusion: The BMW X4 is better suited when longer or deeper-stored cargo needs to be transported frequently and width is not a primary concern. For regularly loading wider, bulky, or tall items, an average SUV with a larger opening and wider narrow point is more practical.