Trunk comparison: Mazda Mazda CX-60 vs Mercedes Benz CLA Shooting Brake

Key Differences (>10%)
Two clear differences stand out from the data: The trunk depth (loading edge to trunk floor) is 8.7 in (+2100%) larger in the Mercedes-Benz CLA Shooting Brake compared to the Mazda CX-60, and the width of the trunk opening is 8.7 in (+25%) larger in the Mazda CX-60 than in the Mercedes.
All other deviations are under 10% and thus comparatively minor.
Implications for Usability
The significantly greater trunk depth of the CLA means more usable volume in the vertical or "deeper" direction: the CLA accommodates more cargo in a deeper recess, which offers advantages when stacking or storing bulky, compact items.
However, some objects sit further inside, making loading and unloading (reaching into the trunk) somewhat more cumbersome.
The considerably wider opening of the Mazda makes it much easier to load large or bulky items: wide boxes, furniture parts, or portable sports equipment can be maneuvered more easily through the opening. Additionally, the Mazda's opening height is 2 in greater, which further facilitates inserting tall items.
The remaining differences (length differences with folded seats +3% and +8%, loading edge height +0.4 in, etc.) are minor and have little practical impact: the slightly longer flat loading area in the CLA plays only a minor role in most everyday situations, and the loading edge height differs so little that lifting heavy loads remains practically the same.
In summary: For maximum interior depth and more stacked volume, the Mercedes CLA is advantageous. For easy loading of large or wide items, the Mazda CX-60 is the better choice due to its significantly larger opening.