Trunk comparison: Kia Ceed vs VW Polo

Key Differences
The Kia Ceed offers a noticeably longer cargo area: with the seats folded down, it is 6.3 in (12%) longer than the VW Polo, and with the first row of seats upright, the advantage is 5.1 in (20%).
Additionally, the interior depth of the trunk (loading edge to trunk floor) is significantly greater in the Ceed: plus 1.2 in (38%) compared to the Polo.
Smaller differences include the higher opening height of the Ceed (+2.4 in / 9%), a slightly wider trunk opening (+3.1 in / 9%), and a minimally larger interior width at the narrowest point (+0.4 in / 1%). The loading edge of the Polo, on the other hand, sits 1.6 in (6%) higher above the road.
Implications for Usability
The highlighted differences (>10%) have direct practical effects: The longer cargo area with folded seats and also with the first row upright makes the Ceed significantly better for longer items (e.g., slats, skis, long furniture parts) and for more luggage while still carrying passengers.
The significantly greater depth (loading edge → floor) means that volume deeper below the loading edge can be utilized — suitcases or boxes can be somewhat "recessed" without stressing the tailgate, which increases the usable cargo volume.
The smaller differences act as complements: The higher opening height and wider opening of the Ceed (each just under 10%) make loading bulky but not extremely wide items easier; the slightly lower positioned loading edge of the Ceed (Polo +1.6 in higher) makes lifting heavy loads a bit easier.
Overall, the Kia Ceed is the more practical choice if the trunk is regularly used for longer or bulkier cargo; the Polo remains sufficiently compact for everyday use and small transports but loses significant utility compared to the Ceed with longer or larger luggage items.