Trunk comparison: Audi A6 Avant vs Kia Stonic

Key Differences

The Audi A6 Avant offers significantly more cargo length: with the seats folded down, the trunk is 23.2 in (43%) longer, and with the first row of seats upright, it is 18.9 in (70%) longer than in the Kia Stonic.

On the other hand, the Kia Stonic has a significantly greater trunk installation depth: the depth (loading edge to trunk floor) is 6.3 in (800%) larger. Additionally, the loading edge of the Stonic sits 5.1 in (20%) higher above the road than in the A6.

Impact on Usability

The greater cargo length of the A6 Avant makes it much more practical for long items (skis, furniture parts, construction panels) and for transporting bulky, flat loads that need to be laid lengthwise.

Those who regularly transport long or bulky items will face fewer limitations with the A6 and can stack or extend better.

The significantly deeper trunk of the Kia Stonic offers more "internal" storage space below the loading edge, which can be advantageous for loose luggage, shopping bags, or bulky but not particularly long cargo.

Combined with the higher loading edge, however, this also means: heavy items must be lifted higher or over a higher threshold, and loading can be less comfortable. The greater depth can also cause heavy or long objects to not lie flat as easily and be less accessible.

Smaller differences such as the slightly wider trunk opening on the A6 (+2 in, 5%) or the slightly higher opening height on the Stonic (+2.4 in, 8%) are minor and have little practical impact.

Conclusion: For transports requiring length and flat cargo space, the Audi A6 Avant is the more practical choice. For everyday usability with deeper internal volume for mostly smaller luggage, the Kia Stonic may suffice but requires somewhat more effort and strength when loading due to the higher loading edge.