Trunk comparison: Audi A6 Sedan vs VW Polo

Key Differences
The Audi A6 offers significantly more cargo space: with the seats folded down, the trunk is 22.4 in (41%) longer than the VW Polo, and with the first row of seats upright, it is even 19.3 in (74%) longer. Additionally, the trunk depth (loading edge to trunk floor) in the Audi A6 is 1.6 in (50%) greater.
In contrast, the VW Polo has a significantly higher trunk opening: the opening height is 7.5 in (38%) greater in the Polo than in the A6. The width at the narrowest point is the same for both models; the width of the opening differs by only 0.8 in (2%) in favor of the A6.
Impact on Usability
For transporting large or long items, the Audi A6 is clearly advantageous: the significantly longer cargo areas with folded or upright seats as well as the greater depth allow for more volume and better stacking of luggage, furniture, or long objects.
The greater depth and overall longer cargo area also make it easier to store elongated loads without them protruding far into the passenger compartment.
The VW Polo, on the other hand, scores with vertical usability: the higher trunk opening makes loading tall items (e.g., crates, boxes, or bulky cartons) easier because more interior height is available right at the access point. In practice, this can significantly simplify turning and lifting bulky items inside.
Practically speaking: Those who regularly transport larger or longer loads benefit more from the Audi A6. Those who more often transport bulky, rather tall items or occasional shopping in a smaller vehicle and value easier access will find advantages in the VW Polo.