Trunk comparison: Audi Q5 vs BMW i4

Highlighted Differences (>10%)

When comparing the trunk dimensions, four deviations over 10% stand out: the height of the Audi Q5's trunk opening is 4.7 in (18%) larger than that of the BMW i4; the depth of the trunk (loading edge → trunk floor) of the BMW i4 is 0.8 in (25%) larger; the narrowest width in the Audi Q5's trunk is 5.9 in (17%) larger; and the width of the Audi Q5's trunk opening is 7.5 in (20%) larger.

Impact on Usability

Width and Opening: The Audi Q5 offers significantly more lateral space at the narrowest point and a wider opening.

This makes it more practical for wide or bulky items (strollers, wide suitcases, furniture parts) and reduces the likelihood that cargo must be tilted or disassembled due to insufficient width. The BMW i4 reaches its limits more quickly with wide items.

Opening Height: The greater opening height of the Q5 makes loading taller items easier because less tilting or turning is required. This is advantageous for bulky, tall suitcases, plants, or boxes.

Trunk Depth: The BMW i4 has a greater depth (loading edge to floor). Practically, this means cargo sits deeper and can be better recessed or stacked — useful for bulky but not very wide/tall loads. At the same time, reaching items further back may require bending down a bit more.

Overall Impression / Trade-offs: For wide or tall cargo, the Audi Q5 is the more practical choice.

The BMW i4, on the other hand, offers somewhat more usable recess depth and for long, slender items (small width, greater length) its slightly longer loading area can be advantageous, but overall it seems less flexible with wide or bulky pieces.