Trunk comparison: Audi Q2 vs VW Touran

Trunk Lengths and Seat Configuration
The VW Touran offers significantly more cargo space with the seats folded down: +13.4 in (23%) longer trunk than the Audi Q2 with folded seats and also +9.1 in (29%) more length when the first row of seats is upright.
Conversely, the Audi Q2 has a significantly longer cargo space when all seats are upright: +17.3 in (129%) compared to the Touran.
In practice, this means: The Touran is advantageous when transporting large or long items that require space gained by folding seats. The Audi Q2, on the other hand, is more practical when full seating occupancy is required but comparatively long items need to be accommodated across the width of the trunk opening.
Accessibility, Loading Edge, and Interior Depth
Regarding accessibility, the Touran has a slightly higher trunk opening: +3.5 in (12%), which makes sliding in tall items easier, and the width of the trunk opening is +3.9 in (11%) larger on the Touran, simplifying loading bulky items.
The Audi Q2 scores with a significantly greater interior depth (loading edge to trunk floor): +3.9 in (1000%) compared to the Touran, and its loading edge is +5.5 in (23%) higher above the road.
Practically, this means: In the Audi, the loading surface sits deeper relative to the opening (better "depth" storage), but the higher loading edge makes lifting heavier loads more strenuous.
The Touran is more accessible for tall or wide cargo, while the Q2 offers a deeper cargo well and thus safer storage for smaller items, but with higher physical effort when loading.
Conclusion on Usability
For families or users who frequently transport bulky, tall, or wide items and fold seats down, the VW Touran is more practical due to the greater length with folded seats, higher opening height, and wider opening.
For users who regularly drive with full seating but still need more usable loading length and a deeper cargo floor, the Audi Q2 is often more suitable in everyday use — albeit at the cost of a higher loading edge, which can make loading and unloading more difficult.