Trunk comparison: Audi Q2 vs Mercedes Benz CLA Shooting Brake

Key Differences
The Mercedes-Benz CLA Shooting Brake offers significantly more cargo length: when all seats are folded down, the trunk is +13 in (23%) longer, and with the first row of seats upright, even +11 in (36%) longer than the Audi Q2. Additionally, the trunk depth (distance from loading edge → trunk floor) in the CLA Shooting Brake is +4.3 in (100%) greater.
Smaller differences (under 10%) concern the height of the trunk opening (Audi +2.4 in), the width at the narrowest point (CLA +2.4 in), the width of the opening (Audi +2.8 in), and the loading edge height above the road (Audi +0.4 in).
Impact on Usability
The significantly greater cargo length in the CLA Shooting Brake makes it more suitable for long items (e.g., furniture, skis, lumber) and for situations requiring more usable cargo volume with seats upright (more shopping goods, luggage with four passengers).
The 4.3 in deeper recessed loading floor in the CLA means the storage space sits lower — this creates more usable volume below the loading edge and prevents bulky items from protruding over the loading edge.
This is practical for bulky or irregularly shaped loads but may require a slightly larger lifting angle when loading heavy items.
The Audi Q2 scores with a slightly larger opening height and width (each under 10% difference), which facilitates loading tall or wide items and improves handling during quick loading and unloading. The slightly higher loading edge of the Q2 (+0.4 in) is negligible in practice.
Conclusion: For longer, larger, or more voluminous loads, the CLA Shooting Brake is clearly advantageous. For more compact, lighter loading with somewhat easier access to tall or wide items, the Audi Q2 can offer more practical features, though the differences here are much smaller.