Trunk comparison: Audi A6 Avant vs BMW X5

Summary

The Audi A6 Avant offers a longer cargo area with the front seats upright: +13% (Audi A6 Avant longer). Additionally, the trunk depth (loading edge → trunk floor) is +0.4 in (100%) greater in the A6. The BMW X5 has a significantly higher loading edge: +5.9 in (23%) above the road.

Impact on Usability

Due to the 13% longer cargo area with front seats in place, the A6 is better suited for longer items when passengers are seated in the rear (e.g., skis, long furniture parts).

The 0.4 in (100% relative) greater depth in the A6 means the cargo space between the loading edge and floor is slightly deeper — in practice, this improves the secure placement of flat or long loads that would otherwise rest on the edge.

The BMW’s 23% higher loading edge makes lifting heavy or bulky items into the cargo area more strenuous; for frequent loading and unloading of heavy loads, the A6 has an ergonomic advantage due to the lower loading edge.

Other differences (≤10%): The BMW has slightly more width at the narrowest point (+10% exactly) and a somewhat larger opening width (+5%), which makes loading very wide items easier.

The trunk opening height is 2.8 in (+10%) greater in the X5, which can help with very tall items; however, this value is exactly 10% and therefore less pronounced than the differences mentioned above.