Trunk comparison: Audi A4 Avant vs Seat Leon

Key Differences

The Audi A4 Avant offers significantly more cargo length: with the seats folded down, the trunk is 13.4 in (23%) longer, and with the first row upright, it is 8.7 in (27%) longer than the SEAT Leon. At the narrowest point, the Audi is 7.1 in (22%) wider, so the bottleneck is considerably more generous.

In contrast, the SEAT Leon has a much greater depth between the loading edge and the trunk floor: this measurement is 7.9 in (400%) higher than the Audi. Additionally, the loading edge of the SEAT Leon sits 4.7 in (19%) higher above the ground.

Smaller differences: the height of the trunk opening is only slightly higher on the Audi (+2 in / 6%) compared to the SEAT, and the opening width is slightly larger on the SEAT (+2.8 in / 7%) — both values are below the 10% threshold.

Implications for Usability

For long or bulky cargo, the Audi A4 Avant is clearly advantageous: the longer loading surfaces (both with folded seats and with the seat row upright) and the greater width at the bottleneck allow transporting longer and wider items without rearranging or complicated shifting.

The generally lower loading edge on the Audi also makes lifting heavy loads into the trunk easier.

The SEAT Leon scores with the significantly greater depth between the loading edge and the trunk floor: this creates a deeper cargo well that provides more vertical storage space in the recess and tends to hold smaller or taller stacked items more stably or hidden.

However, this advantage is offset by the higher loading edge (+4.7 in / 19%): heavy lifting is more strenuous, and loading bulky, heavy goods is less practical than with the Audi.

In summary: Those who regularly transport long, wide, or heavy cargo benefit from the Audi A4 Avant. Those who often carry more volatile or tall-stacked cargo in a deep cargo well and have no problem with a higher loading edge can benefit from the SEAT Leon.