Trunk comparison: Audi Q3 vs Peugeot 3008

Key Differences
The most significant difference between the two models concerns the vertical depth of the cargo area: the Peugeot 3008 has a 22% greater depth (loading edge to trunk floor) than the Audi Q3. The other measurements differ only slightly: with the seats folded down, the trunk of the Peugeot is only 0.4 in longer, and with the first row of seats upright, it is 3.5 in longer (each about 1–10%).
The width at the narrowest point is 0.4 in greater in the Peugeot, while the width of the trunk opening is 3.9 in greater in the Audi. The height of the trunk opening is identical in both models. Additionally, the loading edge of the Peugeot sits 2 in higher above the ground.
Implications for Usability
The greater depth of the Peugeot (22%) means more usable interior height behind the loading edge: bulky or stacked luggage fits more easily in the 3008. This is offset by the higher loading edge (+2 in), making lifting heavy items somewhat more strenuous.
Considering both loading edge height and depth together, the trunk floor of the Peugeot is approximately 1.2 in higher above the ground than that of the Audi — this reduces the need to lift items deeply downward but requires overcoming the higher threshold.
The Audi Q3 scores with a wider trunk opening (+3.9 in), which facilitates loading wider or bulky items.
The slightly longer loading length of the Peugeot with the first row of seats upright (≈3.5 in) is advantageous when longer items remain inside the cabin but has a moderate effect. Smaller differences in width and overall length (each about 1%) are hardly noticeable in everyday use.
Conclusion: Those who frequently carry tall or stacked loads benefit from the Peugeot 3008 due to its significantly greater depth.
Conversely, those who often transport wide, bulky cargo or simply prefer easier handling when loading and unloading are better served by the Audi Q3 because of its larger opening and lower loading edge.