Trunk comparison: Citroen C3 vs Durchschnitt SUV

Key Differences
The average SUV offers 9.8 in (18%) longer cargo space with the seats folded down than the Citroën C3 and 7.1 in (27%) longer cargo space with the seats upright. The width of the trunk opening is 7.1 in (20%) larger on the average SUV.
The Citroën C3, on the other hand, has a significantly deeper loading area: the depth from the loading edge sill to the trunk floor is 7.1 in (360%) greater on the C3 than on the average SUV.
Smaller differences: The trunk opening of the C3 is 0.8 in (3%) higher, the loading edge 1.2 in (4%) higher, and the narrowest width on the average SUV is only 2.8 in (7%) larger — these values are under 10% and less decisive.
Impact on Usability
Longer cargo space and wider opening on the SUV mean a concrete practical advantage for bulky and long items: furniture, lumber, skis, or large boxes can be loaded more easily and lie more stably, even when the seats remain upright. The 20% wider opening reduces problems when fitting wide loads.
The significantly greater depth from the loading edge sill to the floor in the C3 creates a deeper loading well.
This helps to securely store smaller items, reduces shifting during braking, and can increase the usable luggage height under the tailgate. Due to the slightly higher loading edge (+1.2 in), lifting heavy loads into the C3 is slightly more strenuous.
In summary: If you often transport long or wide loads, the average SUV is more practical. For everyday use with lots of small items and when a deep loading well is desired, the Citroën C3 offers advantages — albeit at the expense of usable length and opening width.