Trunk comparison: BMW 3 Series Touring vs Citroen C3
Key Differences
The largest, practically relevant differences are mainly in the loading length, depth, and loading edge height: The BMW 3 Series Touring offers a significantly longer loading area — with folded seats +15.4 in (29%) and with the first row upright +13 in (49%) more than the Citroën C3. The width of the trunk opening is +4.7 in (14%) larger on the BMW.
The Citroën stands out particularly because the depth from the loading edge to the trunk floor is +8.7 in (2200%) greater and the loading edge overall is +7.1 in (30%) higher above the road. Smaller differences (trunk opening height +2.8 in / 10%, narrowest width +0.4 in / 1%) are practically negligible.
What impact does this have on usability?
For transporting long and wide items, the BMW is clearly advantageous: the significantly greater loading length and wider opening make it easier to load slats, furniture parts, sports equipment, or long boxes — often allowing more to be loaded in one layer without removing seats or repacking extensively.
Likewise, the lower loading edge of the BMW is beneficial when frequently lifting heavy loads; shorter lifting heights mean noticeably less effort and more ergonomic loading.
The Citroën C3, on the other hand, scores with a significantly deeper loading well and a higher loading edge. This means loaded items disappear further into the trunk, which can be advantageous for irregularly tall loads (water containers, suitcases, bulky stacks), and the interior surface can better "hide" cargo.
Practically, however, the higher loading edge means heavy items must first be lifted higher before being lowered into the trunk — this is less favorable for frequent loading than the lower threshold of the BMW.
The slightly higher opening height of the C3 (≈10%) offers a bit more vertical clearance when loading tall items through, but is not a strong advantage compared to the longer BMW trunk.
Conclusion: Those who regularly plan long or wide transports and prefer ergonomic loading and unloading are better served by the BMW 3 Series Touring. Those who value a deep loading well and "hiding" cargo — and rarely transport very long items — will find a practical solution in the Citroën C3.