Trunk comparison: Renault Austral vs VW Golf Wagon (Mk5)

Key Differences
The VW Golf 5 offers a significantly longer cargo floor with the rear seats upright: +7.5 in (22%) more interior length than the Renault Austral.
The Renault Austral, on the other hand, has a considerably deeper cargo well (loading edge → trunk floor): +1.2 in (60%) compared to the Golf, as well as a wider tailgate opening width: +4.3 in (11%).
Additionally, the loading edge of the Austral sits noticeably higher above the road: +5.5 in (22%) compared to the Golf.
Impact on Usability
For long, flat items (e.g., long boxes, skis, or slats), the Golf is more practical in everyday use because its greater interior length with the rear seats upright provides more usable length — requiring less folding of the seats.
The Austral, on the other hand, is better suited for bulky or tall cargo because the deeper cargo well and wider opening make loading and storing bulky or tall items easier and provide more usable volume behind the loading edge.
However, the higher cargo floor of the Austral makes handling heavy loads more strenuous: lifting over a loading edge that is 5.5 in higher requires more effort compared to the Golf.
For people who frequently load and unload heavy items, the Golf is therefore more ergonomic. For regular transport of bulky or tall parts, the Austral is advantageous — despite the higher loading edge, the deeper well compensates for the effective interior height.
Smaller differences (e.g., overall length with seats folded down, opening height, narrowest width) are comparatively minor and have little impact on everyday use.