Trunk comparison: Audi Q3 vs VW Caddy Wagon

Key Differences
The comparison reveals several significant differences in dimensions that directly affect everyday usability. The trunk length with folded seats is 19.7 in (43%) longer in the Audi Q3 than in the VW Caddy Wagon, while the Caddy offers 6.7 in (19%) more cargo length with the first row of seats upright.
The trunk opening of the Caddy is 14.2 in (46%) higher than that of the Q3. The depth between the loading edge and trunk floor is 2.8 in (350%) greater in the Audi.
The loading edge of the Audi sits 7.1 in (32%) higher above the road than that of the Caddy. At its narrowest point, the Caddy's trunk is 5.1 in (13%) wider. The width of the trunk opening differs by only 0.4 in (not relevant).
What are the implications for usability?
The longer cargo length of the Audi Q3 with folded seats makes it better suited for long items (e.g., slats, long boxes, skis) or when regularly transporting large flat loads.
The additional depth between the loading edge and floor creates a somewhat "lower-lying" cargo floor, so flat-lying items are better supported — together with the longer cargo area, this increases usable storage space for pure cargo without passengers.
The VW Caddy Wagon, on the other hand, is advantageous when more cargo needs to be carried with the first row of seats upright: it offers more cargo length with occupied seats, a significantly higher trunk opening, and a larger minimum width.
This makes the Caddy more practical for bulky, tall, or wide items (e.g., furniture, boxes, plants) and facilitates loading bulky cargo. The lower loading edge of the Caddy also makes lifting and rolling heavy items into the interior easier (better ergonomic handling).
In practice, this means:
- Those who frequently transport long items and mostly drive without or with folded rear seats benefit more from the Audi Q3.
- Those who regularly combine passengers and larger/tall/wide cargo or load and unload heavy, bulky items have the more practical solution with the VW Caddy Wagon.