Trunk comparison: Audi A6 Sedan vs VW ID.4

Key Differences

The Audi A6 offers significantly more cargo length: with the seats folded down, the trunk is 10.2 in (15%) longer and with the first row of seats upright, 8.3 in (22%) longer than in the VW ID.4. Additionally, the trunk depth (loading edge to floor) of the A6 is 0.8 in (20%) greater, which means more usable interior height in the cargo space.

The VW ID.4, however, has clear advantages in opening height and width: the trunk opening is 11.8 in (60%) higher and the opening width is 5.1 in (14%) larger than the A6. The loading edge of the ID.4 is 3.1 in (12%) higher above the road. The minimum interior width difference of 0.4 in (1%) is negligible.

Impact on Usability

The longer interior dimensions of the Audi A6 make it better suited for long items (e.g., slats, skis, longer furniture parts) and for loads that require depth.

The slightly greater trunk depth allows for more stacking height inside, and the lower loading edge of the A6 makes lifting heavy loads into the vehicle easier.

The VW ID.4 scores points with bulky, tall, and wide items: the significantly higher opening height and larger opening width make it easier to load tall boxes, furniture, or large-volume luggage. The downside of the ID.4 is the higher loading edge, which makes handling heavy loads more strenuous.

Practical conclusion: Those who frequently load long or heavy items and appreciate a lower loading edge are better off with the Audi A6. Those who need more headroom when loading and a wider, taller passage (e.g., for bulky, voluminous cargo) benefit from the VW ID.4.