Trunk comparison: VW ID.3 vs VW ID.4

Key Differences (highlighted >10%)

The VW ID.4 offers significantly more space for longer items with +5.9 in or +19% more trunk length when the front seat row is upright, if the rear seats are not folded down.

The trunk opening of the ID.4 is also +4.3 in or +11% wider, which makes loading and unloading wider items easier. In contrast, the VW ID.3 has a significantly greater depth between the loading edge and the trunk floor: +2.4 in or +60% — resulting in a noticeably deeper cargo "well."

What impact does this have on everyday usability?

ID.4: Due to the greater length with the rear seat upright and the wider opening, the ID.4 is better suited for transporting long or bulky items without folding the seats (e.g., long boxes, skis, furniture parts) and for easily loading wider parts.

The slightly larger opening simplifies sliding in and positioning large luggage.

ID.3: The significantly greater depth from the loading edge to the trunk floor creates more "depth" in the cargo area, allowing flat/low-profile items to lie lower and making the visible cargo volume appear larger.

This is practical when transporting a lot of flat-stacked cargo or when wanting to use the space below the loading edge.

A downside is the greater lifting height when loading and unloading (together with the slightly higher loading edge), which makes handling heavy items somewhat more strenuous and reaching cargo lying below more difficult.

Commonalities: At the narrowest point, both models are equally wide; differences in trunk opening height (+7% ID.4) and loading edge height (+4% ID.3) are minor and hardly affect everyday usability.

Conclusion: For frequent transport of long or wide items without folding the seats, the ID.4 is the more practical choice.

For users who prefer flat or low-lying cargo and want to utilize the volume below the loading edge, the ID.3 offers advantages — albeit at the expense of easier accessibility and comfortable lifting of heavy loads.