Trunk comparison: Audi A4 Avant vs Peugeot 3008

Significant Differences (over 10%)
The loading edge of the Peugeot 3008 is significantly higher (+6.7 in / +27%) than that of the Audi A4 Avant. Practically, this means: when loading, items have to be lifted much higher, heavy loads require more effort or a ramp.
The depth between the loading edge and the trunk floor is 2.4 in (+120%) greater in the Peugeot than in the Audi. This means that below the loading edge, the trunk floor in the Peugeot slopes down more steeply – creating a deeper interior compartment compared to the loading edge.
In practice, this results in a mixed effect: despite the deeper floor, the trunk floor of the Peugeot is overall higher above the ground due to the higher loading edge (net effect: loading edge higher than Audi by 6.7 in minus 2.4 in depth = about +4.3 in).
Result for usability: the Peugeot offers more vertical space inside under the loading edge but is overall less comfortable to load (higher lifting); the Audi has a generally lower loading height, which makes loading and unloading heavy items easier.
Further Differences and Consequences
The Audi A4 Avant offers 6.3 in more length (10%) with the seats folded down and 2.4 in more length (6%) with the first row upright — this makes the Audi more advantageous for long items and flat loads.
The trunk opening height is 2.8 in (9%) larger in the Audi, which slightly eases inserting tall items, but it is just below the 10% threshold. The narrowest width of the trunk differs by only 0.8 in in favor of the Peugeot; the width of the opening is the same.
In short: Peugeot scores with a deeper interior floor under the loading edge (more usable interior height), Audi scores with a lower loading height and more length for bulky items — for frequent loading of heavy items, the Audi is ergonomically better in practice; for stacked/vertical storage space, the Peugeot can offer advantages but requires more physical effort when lifting.