Trunk comparison: Audi A3 Sportback vs Skoda Kamiq

Key Differences
None of the listed differences exceed 10%. The largest deviations are: the height of the trunk opening on the Škoda Kamiq is 2.8 in (9%) higher than on the Audi A3 Sportback, and the width of the Kamiq's trunk opening is 2 in (5%) larger.
Other differences: with the seats folded down, the Kamiq is 1.6 in (3%) longer, while with the front seats upright, the Audi A3 Sportback has a 1.2 in (4%) longer cargo area.
The trunk depth and narrowest width are the same for both models. The loading edge of the Kamiq is 1.2 in (4%) higher above the ground than the A3.
Impact on Usability
The higher trunk opening (+2.8 in / 9%) makes it easier to load bulky, tall cargo into the Kamiq, and the slightly larger opening width (+2 in / 5%) facilitates loading wider items.
The 1.6 in longer length with folded seats in the Kamiq offers slightly more cargo space for long items, but this is only a minor advantage in practice.
Conversely, the A3 has a 1.2 in longer cargo area (+4%) with the front seats upright, which can be slightly advantageous for everyday use (e.g., longer luggage with full seating).
The 1.2 in higher loading edge in the Kamiq means a bit more effort when lifting heavy items in; those who frequently load and unload heavy cargo have a small advantage with the A3's lower loading edge.
Since depth and narrowest width are identical, both vehicles are comparable in terms of floor depth and tight cargo loads.