Trunk comparison: BMW 3 Series Touring vs Peugeot 308 SW 3-row
Key Differences
The biggest differences concern the length and accessibility of the trunk as well as the dimensions of the opening.
Particularly notable are: the BMW's trunk is significantly longer with the seats folded down, as well as with the seats upright; the Peugeot offers a significantly higher trunk opening, a larger opening width, and a deeper trunk recess.
BMW 3 Series Touring: trunk +11.8 in (21%) longer with folded seats — meaning: more usable loading length for long items, building materials, or skis.
BMW 3 Series Touring: trunk +25.6 in (186%) longer with all seats upright — thus, the BMW offers significantly more everyday storage space behind the seats when fully occupied than the Peugeot.
Peugeot 308 SW (3-row): trunk opening +6.7 in (24%) higher — a higher opening makes it easier to load tall items and increases headroom when loading.
Peugeot 308 SW (3-row): trunk depth (loading edge → floor) +1.2 in (300%) greater — the recess allows bulky or tall cargo to be recessed deeper, creating volume; however, when lifting heavy loads, the behavior may differ compared to a flatter floor.
Peugeot 308 SW (3-row): trunk opening width +5.1 in (13%) larger — a wide opening facilitates loading bulky or wide items (e.g., strollers, furniture parts).
Impact on Usability
For transporting long items and when frequently driving with folded seats, the BMW is clearly advantageous: more loading length means fewer restrictions when transporting slats, pipes, sports equipment, or longer boxes.
Also, in everyday use with all seats occupied, the BMW offers significantly more trunk space, which makes traveling with luggage or shopping easier when fully occupied.
The Peugeot scores in accessibility: the higher opening and larger opening width make loading tall and wide items easier.
The deeper trunk area allows volume to be used "downwards" and bulky cargo to be recessed deeper. This is practical for voluminous but not very long items (boxes, strollers, larger items from the furniture store).
Smaller differences (under 10%) are: Peugeot has about +3.1 in longer trunk with the first row upright, the BMW's loading edge is about 1.6 in higher, and the narrowest trunk width in the Peugeot is only about 2.4 in larger — these values are less decisive in practice but can influence loading very heavy objects (higher loading edge) or extremely narrow cargo in borderline cases.
Conclusion: For long loads and maximum cargo space with full occupancy, the BMW 3 Series Touring is the better choice. For better accessibility, higher opening, and easier loading of tall/wide items, the Peugeot 308 SW (3-row) is more suitable.