Trunk comparison: Audi A6 Avant vs VW ID.4

Biggest Differences (highlighted)

The Audi A6 Avant offers significantly more length in the cargo area: with the seats folded down, the trunk is +10.6 in (16%) longer, and with the first row of seats upright, it is even +9.1 in (24%) longer than in the VW ID.4. Two other measurements stand out for the VW ID.4: the depth from the loading edge to the trunk floor is +3.1 in (400%) higher than in the A6 Avant, and the loading edge itself sits +3.9 in (16%) higher above the ground than in the Audi.

Implications for Usability

These differences lead to clearly different strengths: The greater cargo length in the Audi A6 Avant makes it better suited for long items (e.g., skis, long packages, furniture parts) and for users who often need flat-folded seats to transport bulky, elongated cargo.

More length also makes it easier to store larger luggage with all seats in place.

The VW ID.4 offers more vertical space behind the loading edge due to the greater depth and higher loading edge, which can be advantageous when items require more downward space or higher stacking.

However, the significantly higher loading edge makes loading and unloading more strenuous, especially with heavy loads, because more lifting effort is required. Likewise, reaching into deep areas is less comfortable due to the greater depth.

Width and opening differences are minor, only a few centimeters, and have little practical impact.

In summary: Those who frequently transport elongated or very long cargo benefit more from the Audi A6 Avant; those who need more usable space below the loading edge or higher stacking heights inside find advantages in the VW ID.4 but must accept a higher loading edge and somewhat more cumbersome handling of heavy items.