Trunk comparison: BMW X1 vs Ford Focus Wagon

Key Differences
The Ford Focus Wagon offers a larger cargo area with the rear seats folded down: it has +7.9 in (12%) more trunk depth than the BMW X1. Even with the first row of seats upright, the Focus is longer: +5.5 in (16%). At the narrowest point, the Focus's trunk is also wider: +4.7 in (12%).
The BMW X1 scores with trunk floor depth (loading edge to trunk floor) with +0.4 in (50%) more and has the loading edge +3.1 in (13%) higher above the ground. Minor differences under 10% include the height of the trunk opening of the BMW (+0.4 in / 1%) and the width of the trunk opening of the Focus (+0.4 in / 1%).
Impact on Usability
For transport tasks where length or width is important (e.g., long items, suitcases, furniture), the Ford Focus Wagon is more practical: the additional 12–16% length and the 4.7 in wider narrowest width make loading easier and allow for larger/more awkward cargo.
The BMW X1 offers different pros and cons due to the slightly greater floor depth and higher loading edge: the 0.4 in deeper loading surface (noted here as a relatively large percentage) can provide slightly more vertical storage space, but the 3.1 in higher loading edge makes lifting heavy items more strenuous and less practical in everyday use.
Small differences in opening height and width (each +0.4 in) are negligible for most uses.