Trunk comparison: Hyundai Kona vs VW Touran

Key Differences
Three differences stand out clearly from the data: The VW Touran offers a 5.9 in (17%) longer cargo floor when the first row of seats is upright; the Hyundai Kona has a 20.5 in (153%) longer cargo floor when all seats are upright; and the depth of the trunk (loading edge to trunk floor) of the Kona is 1.6 in (400%) greater.
All other figures differ by ≤10% (e.g., +5.1 in/8% with folded seats, Touran opening height +3.1 in/10%, Kona loading edge height +2.4 in/10%, width differences negligible) and are therefore less relevant for basic usability.
Impact on Usability
VW Touran — longer cargo floor with upright first row: With 5.9 in (17%) more cargo length with unshifted/upright front seats, the Touran is better suited for longer items that need to be transported despite full or partial occupancy (e.g., slats, skis, long boxes).
The slightly higher trunk opening (+3.1 in) makes it easier to slide in tall loads.
Hyundai Kona — significantly more space with full occupancy and greater trunk depth: The Kona offers significantly more usable length with all seats upright (+20.5 in / 153%) and a noticeably deeper cargo well (+1.6 in / 400%).
This makes the Kona more practical for everyday luggage, suitcases, and bulky but not necessarily long items when all seats are occupied. The greater depth helps store luggage deeper and more stably (better packability, less shifting), but may increase bending when loading.
Conclusion: For transporting long items with a fully occupied vehicle, the Touran is advantageous. For more usable volume with full seating and safer stacking of luggage, the Kona wins.