Trunk comparison: BMW X4 vs Seat Tarraco
Key Message
The main differences concern the trunk opening and geometry: The SEAT Tarraco offers a significantly higher opening and a larger opening width, while the BMW X4 has a slightly greater depth from the loading edge level to the trunk floor.
Other dimensions (length with folded/upright seats, loading edge height, narrowest width) are minor.
Significant Differences (highlighted)
Height of the trunk opening: The SEAT Tarraco has a +5.1 in (19%) higher trunk opening. Practically, this means easier loading of tall items, more headroom when loading and unloading, and higher stacking heights possible.
Width of the trunk opening: The Tarraco's opening is +4.7 in (12%) wider. This significantly facilitates loading wider or bulkier items (strollers, furniture parts, large boxes).
Depth of the trunk (loading edge → trunk floor): The BMW X4 is +0.8 in (33%) deeper here. In absolute terms, that's only 0.8 in; relatively, the difference seems large.
In practice, it provides a slightly greater vertical usable height behind the loading edge but does not make a big difference in volume for normal transports.
Other, smaller differences and their impact
Trunk lengths: The SEAT Tarraco is +5.9 in (9%) longer with folded seats and +3.9 in (10%) longer with the first row upright than the BMW X4. These differences are noticeable for longer loads (skis, long boxes) but are at or below the 10% mark.
Loading edge height: The loading edge of the BMW X4 sits +1.6 in (5%) higher above the road. This means slightly more effort when lifting heavy items but can mean slightly better ground contact when maneuvering.
Narrowest trunk width: The Tarraco is only +0.4 in (1%) wider — practically irrelevant.
Practical Recommendation
Those who frequently transport tall or wide items (strollers, bulky boxes, furniture) clearly benefit from the SEAT Tarraco due to the higher and wider opening.
Those who value the deeper loading height directly behind the loading edge or prefer a more compact, sportier trunk feel can manage well with the BMW X4 — but the difference in depth is small in practice.