Trunk comparison: Mercedes Benz GLC vs VW ID.3

Key Differences

The Mercedes‑Benz GLC offers 8.7 in (14%) more cargo length with the seats folded down and 5.5 in (18%) more cargo length with the front row upright than the VW ID.3. Additionally, the trunk opening of the GLC is 5.5 in (15%) wider.

In contrast, the VW ID.3 has a significantly greater depth between the loading edge and the trunk floor: plus 6.3 in (1500%).

Smaller differences: the opening height is only 0.4 in (1%) higher on the GLC, the loading edge of the ID.3 sits 2.4 in (8%) higher above the ground, and the narrowest width is 3.5 in (9%) greater on the GLC.

Impact on Usability

The larger length dimensions and wider opening of the GLC improve usability for long or wide items: furniture, slats, or long sports equipment are easier to transport, even when the front row is occupied. The greater opening width simplifies loading bulky parts.

The significantly greater distance between the loading edge and trunk floor in the ID.3 makes the cargo area "deeper" and can lead to more usable volume below the loading edge (advantageous for box-shaped or tall items that fit better in a deeper recess).

At the same time, the loading edge on the ID.3 is somewhat higher above the ground, which makes lifting heavy loads over the threshold a bit more strenuous.

Conclusion: For longer and wider loads as well as frequently changing bulky transports, the GLC is more advantageous.

Those who benefit more from a deeper cargo floor and the associated additional volume and can live with a slightly higher loading edge will find advantages in the ID.3. Which option is more practical depends on the typical cargo (length/width vs. depth/volume) and the comfort during loading and unloading.