Trunk comparison: Audi A6 Avant vs BMW iX1

Key Differences

The Audi A6 Avant offers significantly more cargo length: with the seats folded down, the trunk is 13.4 in (21%) longer, and with the front seats upright even 10.6 in (30%) longer than in the BMW iX1. In contrast, the loading edge of the BMW iX1 sits higher: it is 3.1 in (13%) higher above the ground than the Audi.

Smaller differences such as the 5% wider trunk opening of the iX1 or the 1% greater height of the opening are below the 10% threshold and thus less relevant; depth and narrowest interior width are the same in both models.

Impact on Usability

The greater cargo length of the A6 Avant makes it more practical for long or flat-load items (e.g., skis, slats, longer furniture parts) and for users who regularly transport larger loads without fully folding down the seats. Even when loading with the rear seats upright, the A6 offers more usable cargo space for suitcases or bulky everyday items. The higher loading edge of the iX1, on the other hand, favors access in situations with more ground clearance (such as higher loading and unloading on uneven terrain) and can be advantageous when maneuvering in parking lots; practically, however, the higher loading edge means more lifting effort when placing heavy items into the trunk. Since depth and narrowest interior width are identical, both models are equal in stackability and storing deeper but not longer items. The slightly larger opening width of the iX1 can help when loading very wide objects but is only a small advantage at 5%.