Trunk comparison: Hyundai IONIQ vs VW Caddy Wagon

Key Differences
The biggest differences lie in cargo space, opening height, loading edge, and interior dimensions: The Hyundai IONIQ offers a cargo area that is +18.5 in (41%) longer with the seats folded down than the VW Caddy Wagon.
With the first row of seats upright, the Caddy instead has a loading length that is +6.3 in (18%) longer.
The trunk opening of the Caddy is significantly larger and higher: +18.9 in (73%) in opening height and an opening width of +7.5 in (20%). At the narrowest point, the Caddy is +5.1 in (13%) wider.
The IONIQ has a deeper loading well from the loading edge to the trunk floor by +3.9 in (500%), but at the same time its loading edge is +6.7 in (30%) higher above the road.
Impact on Usability
Long and flat loads: Due to the significantly longer cargo space with the seats folded down, the IONIQ is better suited for long, flat loads (e.g., slats, long boards), as long as no rear seat passengers are needed.
Practical use with upright first row: When the front row remains upright (i.e., people sitting in front), the Caddy offers more usable loading length (+6.3 in) and is therefore more practical when transporting both driver/passenger and longer items simultaneously.
Tall and bulky items: The significantly higher trunk opening of the Caddy (+18.9 in) plus larger opening width and greater narrow interior width clearly make it superior for loading bulky or tall items – larger boxes, furniture pieces, or upright parts fit more easily.
Loading comfort and lifting effort: The loading edge of the Caddy is significantly lower; although the IONIQ has a loading well that is +3.9 in deeper, because its loading edge is +6.7 in higher above the road, the trunk floor is effectively about +2.8 in higher than in the Caddy.
Result: lifting heavy items is higher and thus more strenuous in the IONIQ, while loading is more comfortable in the Caddy.
Width limitations: The narrower spots and smaller opening width of the IONIQ limit transporting wide items; the Caddy offers advantages here with +5.1 in and +7.5 in more clearance for furniture, toolboxes, or pallet-like items.
Conclusion: For users who frequently transport long, flat loads without rear seat passengers, the IONIQ is advantageous. For everyday versatility, easier loading, wide or tall/bulky cargo, and work with changing seat occupancy, the VW Caddy Wagon is the more practical choice.