Trunk comparison: Audi A6 Avant vs Jeep Renegade

Key Differences
The Audi A6 Avant offers +16.9 in (28%) longer cargo space with seats folded down and +15.7 in (52%) more length with the first row of seats upright compared to the Jeep Renegade.
The Jeep Renegade, on the other hand, has a trunk opening that is +6.3 in (22%) higher, a depth from loading edge to trunk floor that is +4.7 in (600%) greater, and a loading edge that is +4.7 in (19%) higher above the road.
The width of the trunk at its narrowest point (+1.6 in, 4%) and the width of the opening (+2.4 in, 6%) are slightly ahead for the Audi, but these differences are minor (<10%).
Impact on Usability
Because the A6 Avant offers significantly longer cargo spaces, it is better suited for long, flat, or stacked loads — such as skis, long boards, furniture parts, or pallets that require length.
The slightly greater interior width additionally supports loading wider items. The lower loading edge of the A6 (compared to the higher loading edge of the Renegade) also reduces the effort needed to lift heavy objects.
The Jeep Renegade scores with vertical dimensions: the higher trunk opening makes loading tall items easier, and the significantly greater depth from loading edge to trunk floor creates a deeper cargo volume where bulky or voluminous items can lie more securely.
However, the higher loading edge requires more lifting effort when loading, and the shorter cargo length limits transporting long items.
In short: For longer, flatter, or heavier loads, the Audi A6 Avant is the more practical choice. For tall, voluminous, or "highly modular" loads, the Jeep Renegade is more suitable — though at the cost of higher lifting effort over the loading edge.