Trunk comparison: BMW 5 Series Touring vs Mercedes Benz CLA Shooting Brake

Key Differences

Three features differ significantly (>10%): The depth of the trunk (distance from loading edge → trunk floor) is +8.7 in (+2100%) larger in the Mercedes than in the BMW. The loading edge of the Mercedes is also +3.5 in (+14%) higher above the ground.

In contrast, the width of the trunk opening is +7.5 in (+22%) larger in the BMW than in the Mercedes.

All other measurements (folded trunk length +4.7 in/7%, cargo space with rear seats upright +1.2 in/3%, height of trunk opening +0.4 in/1%, narrowest width +0.8 in/2%) are significantly smaller and thus less relevant in practice.

Impact on Usability

The combination of very large depth in the Mercedes and simultaneously higher loading edge results in the following practical consequences: The CLA Shooting Brake offers more vertical space, so taller or bulky items fit better standing up.

However, the 3.5 in higher loading edge makes lifting heavy loads into the vehicle more difficult and increases physical strain when loading.

The BMW scores with a significantly wider trunk opening. This makes loading wide or flat items (e.g., furniture parts, large boxes) much easier and reduces maneuvering when sliding them in. The lower loading edge of the BMW also facilitates lifting heavy loads and everyday loading and unloading.

Conclusion: Those who frequently transport tall, bulky items (where vertical depth is more important than opening width) benefit more from the Mercedes.

Those who often load wide or heavy items or value easy accessibility have the more practical solution with the BMW. Smaller differences in length and height hardly change this assessment.