Trunk comparison: BMW 5 Series Touring vs VW Taigo

Key Differences
The BMW 5 Series Touring offers significantly more cargo length: with the seats folded down, it is +13.4 in (22%) longer and with the first row of seats upright +10.6 in (33%) longer than the VW Taigo.
The Taigo has advantages in opening height and vertical space: the trunk opening is +3.9 in (14%) higher, the depth from the loading edge level to the trunk floor is +7.9 in (1900%) greater, and the loading edge sits +3.5 in (14%) higher above the road than in the BMW.
The width differences favoring the BMW (narrowest point +3.1 in; opening width +2.8 in) are each under 10% and thus less pronounced.
Impact on Usability
The greater length advantage of the BMW makes it better suited for long items such as skis, slats, furniture parts, or multiple suitcases in a row — both with folded and upright seats. Those who regularly transport long cargo benefit from the additional depth.
The Taigo scores in vertical usability: the higher trunk opening and the significantly greater depth between the loading edge and floor allow easier loading of tall or bulky items and better stacking of boxes.
At the same time, the higher loading edge makes lifting heavy loads into the trunk more difficult compared to the BMW — more frequent or heavier loading is ergonomically more demanding.
In short: BMW = clear advantage for longer and wider cargo; Taigo = advantage for tall, bulky, and stackable freight, but with a higher loading edge and thus somewhat more effort required when loading.