Trunk comparison: Audi Q3 vs Peugeot 308 SW 3-row
Key Differences
There are several clear differences in trunk volume: With the seats folded down, the Audi Q3 offers a cargo space that is 8.3 in or 14% longer than the Peugeot.
With a specific seat configuration (front row upright), the Peugeot instead has a cargo space that is 7.1 in or 20% longer. When all seats are upright, the Audi's advantage is especially large: it has a trunk that is 21.7 in or 157% longer than the Peugeot.
Other relevant differences concern the opening and the loading edge: The trunk opening of the Peugeot is 4.3 in or 14% higher than that of the Audi.
The depth of the trunk (loading edge to trunk floor) is 2 in or 125% greater in the Audi. The loading edge of the Audi is also 7.5 in or 34% higher above the road. The width differences (each +0.4 in / 1%) are negligible.
Impact on Usability
For long items and with seats folded down, the Audi Q3 has the advantage: the longer cargo space makes it easier to store slats, skis, or long furniture parts. If only the front seats remain upright, the Peugeot can offer more loading length and is therefore more practical in this specific configuration.
With full seating occupancy (all seats upright), the Audi is clearly more practical: the trunk that is 157% longer means noticeably more storage space for luggage or shopping, while the Peugeot is strongly limited here.
The higher trunk opening of the Peugeot makes loading tall or bulky items easier, as less vertical height is needed.
On the other hand, the significantly higher loading edge of the Audi makes lifting heavy loads in more difficult; at the same time, a higher loading edge can offer advantages in protection against road dirt or when loading in higher garages.
The greater depth in the Audi increases usable volume and allows for deeper storage but can make reaching luggage lying at the very bottom more difficult.
Conclusion: For users who frequently transport long items or need a lot of storage space with full seating, the Audi Q3 is more practical. Those who often load and unload tall or bulky items and prefer a lower loading edge benefit more from the Peugeot 308 SW (3-row). Width differences are hardly relevant.