Trunk comparison: BMW i4 vs Toyota Corolla Wagon

Key Differences (Larger deviations >10% highlighted)

Two differences stand out clearly in the comparison: the height of the trunk opening of the Toyota Corolla Touring Sports is 3.1 in (12%) higher, and the measured depth of the trunk (loading edge to trunk floor) of the BMW i4 is 0.8 in (25%) greater.

The other dimensions — trunk length with folded/upright seats (+6% / +4%), width at the narrowest point (+8%) and width of the opening (+10%) as well as the 2.4 in (9%) higher loading edge of the BMW — are less than 10% or do not exceed 10% and are not highlighted here.

Impact on Usability

Higher trunk opening on the Toyota (+3.1 in / 12%): The larger vertical opening makes it easier to load tall or bulky items (e.g., large boxes, furniture pieces, strollers in upright position). There is less risk of scraping when maneuvering items through the opening; overall better suited for bulky, tall cargo.

Deeper trunk floor in the BMW (+0.8 in / 25%): The greater depth means the floor of the cargo area lies further below the loading edge — this creates more usable interior volume near the floor and can better accommodate longer or flat-lying items.

However, luggage sits deeper, which can make lifting/grabbing during loading and unloading somewhat more difficult.

Other, non-highlighted differences also affect practical use: The slightly higher loading edge of the BMW (+2.4 in / 9%) increases the lifting effort when loading, and the somewhat wider opening and narrowest width on the Toyota make maneuvering wide items easier — these effects are more moderate than the two highlighted points.

Conclusion: For users who often load tall or bulky items, the Corolla Touring Sports offers clear advantages due to the higher opening. For applications benefiting from more interior depth directly at the trunk floor (e.g., longer flat-lying cargo or better usable floor niches), the BMW i4 has a clear advantage.