Trunk comparison: Ford Focus Wagon vs Volvo XC40

Key Differences (highlighted)
The most significant differences concern storage depth, usable length with the first row of seats upright, loading height above the road, and the narrowest loading width.
Specifically: the Ford Focus Wagon has a loading area that is 5.1 in (14%) longer with the first row of seats upright, a trunk depth (loading edge → trunk floor) that is 0.8 in (100%) greater, and a width at the narrowest point that is 4.7 in (12%) larger than the Volvo XC40. Conversely, the Volvo XC40 has a loading edge that is 4.7 in (19%) higher above the road.
Differences such as overall length with folded seats (+6.3 in / 10%) or trunk opening (+0.8 in / 2–3%) are significantly smaller or at or below 10% and play a lesser role.
Impact on Usability
The greater usable length with seats in the upright position (Focus +14%) means that longer items (e.g., skis, long boxes, boards) can be transported in the Focus without folding down seats. This simplifies everyday use when space for long, not very wide cargo is regularly needed.
The greater trunk depth in the Focus creates more space below the loading edge. Practically, this means that lower-lying cargo can be better stored and is less likely to slide out; it results in more usable volume near the floor.
Depending on the type of cargo, this can make the difference between "just fits" and "fits comfortably."
The 4.7 in wider narrow point in the Focus increases the chance of getting wide-format items (boxes, furniture panels) through the interior without difficult angling. A narrow bottleneck in the Volvo can restrict loading wider items.
The 4.7 in higher loading edge of the Volvo means items have to be lifted higher. This makes loading and unloading heavier or less practical, especially with heavy boxes or frequent transport. The lower loading edge of the Focus is more user-friendly for frequent or heavy loading.
Overall, the Ford Focus Wagon is more advantageous for users who regularly want to transport longer, deeper, or wider cargo or frequently lift heavy items. The Volvo XC40 offers no advantages in the points listed here, except for a minimally higher trunk opening (not relevant, <10%).