Trunk comparison: BMW 5 Series Touring vs Kia Stonic

Key Differences (Summary)

The BMW 5 Series Touring offers significantly more cargo space: with the seats folded down, the trunk is +20.9 in (+39%) longer and with the first row upright, +15.7 in (+58%) more length than in the Kia Stonic.

In contrast, the Kia Stonic has a trunk opening that is +3.5 in (+13%) higher, a significantly greater depth between the loading edge and trunk floor (+7.1 in / +1700%), and a loading edge that is +4.3 in (+17%) higher than the BMW.

What impact do these differences have on usability?

Due to the larger cargo space and longer loading surface, the BMW 5 Series Touring is better suited for long or bulky items, flat loads, and larger amounts of luggage (e.g., moving, long sports equipment, large luggage).

The slightly wider opening width of the BMW also makes it easier to slide in wide parts; however, these differences are minor (<10%).

The Kia Stonic scores where vertical space and a higher opening are important: The greater opening height and significantly larger depth between the loading edge and floor create more room for tall items and make it easier to place boxes or tall luggage in the rear area.

However, the loading edge in the Kia is noticeably higher, which makes lifting heavy loads into the vehicle more strenuous and can be disadvantageous for people with limited mobility or for frequent loading.

In summary: For maximum cargo area and long/bulky loads, the BMW 5 Series Touring is the more practical choice. For taller, voluminous items and when opening height is more important, the Kia Stonic offers advantages — but at the cost of greater effort when loading.