Trunk comparison: BMW X5 vs Seat Leon

Summary of the Biggest Differences
The BMW X5 offers significantly more cargo space in length: with the seats folded down, the trunk of the X5 is
longer, and with the first row of seats upright, it is
longer than the SEAT Leon. At the narrowest point, the X5 is also noticeably roomier: the width is
greater. Regarding the distance from the loading edge to the trunk floor, the SEAT Leon is significantly lower: the value is
above that of the X5. The height and width of the trunk opening are the same size; however, the loading edge of the X5 sits slightly higher (+1.6 in / 5%) above the road.
What Are the Practical Effects of These Differences?
The longer cargo space of the X5 makes it clearly better suited for long items (e.g., slats, skis, long furniture parts) and for situations where the rear seats need to be partially or fully folded down. The greater narrowest width means that wide/bulky loads (e.g., furniture pieces, larger boxes) fit more easily into the X5 without hitting tight spots. The lower trunk floor of the SEAT Leon combined with the slightly lower loading edge means: heavier items can be slid in or lifted more easily because less lifting height is required. The greater "depth" can also offer more usable volume in the vertical direction but may make loading and unloading somewhat less practical since items lie further inside and require bending down more. Since the height and width of the opening are the same, there is no difference for very tall or very wide passages — the decisive factors are the internal dimensions (length and narrow point) and the loading edge height. In short: for longer and wider loads, the BMW X5 is the more practical choice; for frequently transported heavy or bulky loads that are more often slid in than lifted, the SEAT Leon can be advantageous due to the lower loading edge and deeper floor position.