Trunk comparison: BMW X1 vs Hyundai IONIQ

Main Differences
Two differences stand out clearly between the two models: The depth of the trunk (loading edge to trunk floor) is 3.5 in (300%) greater in the Hyundai IONIQ than in the BMW X1. Conversely, the width of the trunk opening is 5.1 in (14%) greater in the BMW X1 than in the Hyundai IONIQ.
Impact on Usability
The significantly greater trunk depth of the IONIQ means more usable space lengthwise: longer or more vertically stacked items can be pushed further forward, allowing the volume to be used more effectively.
This can be crucial when transporting, for example, boxes, slats, or longer sports equipment. However, the loading edge of the IONIQ is slightly higher (+1.2 in), which can make lifting heavy items during loading somewhat more difficult.
The wider trunk opening of the BMW X1 makes loading and unloading wider or bulkier items (furniture parts, large boxes) easier because more cross-sectional space is available and maneuvering when loading is simpler.
Combined with the slightly higher opening height of the X1 (+2.4 in, but <10%), this results in a practical advantage for wide loads.
For the other dimensions (trunk length with seats folded down or with the first row upright, each only ±0.4 in, width at the narrowest point +0.4 in), the differences are negligible and have hardly any noticeable impact in everyday use.