Trunk comparison: Hyundai Elantra GT Wagon vs VW Tiguan Allspace

Key Differences
The clearest advantage lies in usable trunk space with upright seats: The Hyundai i30 Wagon has a trunk that is 22.8 in (≈123%) longer when all seats are upright.
In terms of loading area, the VW Tiguan Allspace is advantageous: the trunk opening is 6.3 in (≈16%) wider, and the loading edge is 5.9 in (≈24%) higher above the road.
Other dimensions (e.g., trunk depth between loading edge and trunk floor) are the same, and smaller differences (7% or less) with folded seats and opening height are less relevant.
Impact on Usability
Because the i30 Wagon offers significantly more cargo length with upright seats, it is better suited for everyday use with longer items, transporting sports equipment or luggage without folding down the rear seats.
Families and users who often load with full seating benefit from the significantly larger cargo space here.
The Tiguan Allspace, on the other hand, makes loading and unloading bulky, wider goods easier due to the 6.3 in wider opening. This is practical when loading furniture parts, boxes, or wide sports equipment.
The downside is the 5.9 in higher loading edge: heavier items have to be lifted higher, making loading and unloading more strenuous or making a ramp/lifting aid more useful.
In short: For more usable trunk length with full seating, the Hyundai i30 Wagon is the more practical choice; for easier handling of very wide items, the VW Tiguan Allspace scores despite the higher loading edge.