Trunk comparison: Opel Astra Wagon vs VW ID.4

Key Differences

Two differences stand out clearly from the data: The depth of the trunk (measured from the loading edge to the trunk floor) is +1.6 in (≈40%) greater in the Opel Astra Sports Tourer than in the VW ID.4. Conversely, the loading edge of the VW ID.4 sits +5.1 in (≈21%) higher above the road compared to the Opel.

Other deviations — longer loading surface in the Opel with folded seats (+3.5 in / 5%), more length with the first row of seats upright (+3.1 in / 9%), a slightly higher opening height in the Opel (+2 in / 6%), as well as practically the same width of the opening — are present but fall below the 10% mark and are therefore less pronounced.

Implications for Usability

The greater trunk depth in the Opel practically means more usable volume in the floor area: flatter, longer, or uneven cargo can be placed further into the cargo space, and smaller items are less likely to slip at the loading edge.

This makes the Astra especially practical for transporting longer items or a larger amount of luggage when the cargo space is fully utilized.

The significantly higher loading edge in the VW ID.4, on the other hand, affects handling during loading and unloading: heavy or bulky items must be lifted over a higher edge, making loading and unloading more strenuous, and sliding in long, low items can be more difficult.

For people who frequently lift heavy loads or work with bulky cargo, this is a noticeable disadvantage.

The smaller advantages of the Astra in overall length and opening height (+5–3.5 in) support better usability for longer or taller items but are subtle improvements in everyday use. Both vehicles offer nearly the same usable width at the narrowest point; for wide items, they practically do not differ.

Conclusion

For users who often load larger, longer, or many pieces of luggage or rely on lower lift heights, the Opel Astra Sports Tourer offers the more practical solution due to the deeper cargo floor and slightly longer dimensions.

The VW ID.4 has a significantly higher loading edge, which makes lifting and sliding in loads more difficult — here, usability in everyday life is more limited.