Trunk comparison: Audi A4 Avant vs VW ID.4

Key Differences

The Audi A4 Avant offers a longer cargo floor with the front seats upright than the VW ID.4 (+4.3 in / +12%). This is one of the relevant differences over 10%. In contrast, the VW ID.4 has a significantly greater depth between the loading edge and the trunk floor (+2 in / +100%) and a higher loading edge above the road (+4.3 in / +17%). Both values are clearly above 10% and are therefore particularly relevant in practice.

Impact on Usability

The longer cargo floor of the A4 Avant with the rear seat upright makes it more practical for long items that need to be transported without folding down the seats (e.g., skis, long moldings, furniture parts).

Additionally, the loading edge on the A4 is lower, which makes lifting heavy items easier and frequent loading and unloading more comfortable.

The VW ID.4 offers more "recessed" storage space due to the greater trunk depth: bulky or high-volume items can lie deeper in the trunk without protruding over the loading edge.

However, the loading edge on the ID.4 is noticeably higher, which makes lifting heavy loads more difficult. Small advantages in width and trunk opening (each +2–2 in in favor of the ID.4) slightly improve handling of wider items but remain below the 10% mark and are less decisive.

Conclusion

For users who frequently transport long items or often lift heavy luggage, the Audi A4 Avant is overall more practical due to the longer cargo floor (with rear seat upright) and the lower loading edge.

Those who need more deep, recessed cargo capacity and a somewhat wider opening for bulky but not too heavy loads will find advantages in the VW ID.4 — however, the higher loading edge makes handling heavy loads more difficult.