Trunk comparison: Mercedes Benz GLC vs VW Touran

Key Differences
With all seats upright, the Mercedes‑Benz GLC offers significantly more cargo length: +23.2 in (174%) longer than the VW Touran. The trunk opening of the Touran, on the other hand, is 3.9 in (13%) higher than that of the GLC.
Additionally, the loading edge of the GLC is 3.5 in (15%) higher above the ground than that of the Touran. All other specified dimensions (length with folded seats, depth, narrowest width, opening width) differ by less than 10% and are therefore secondary.
Impact on Usability
The significantly greater cargo length of the GLC with full seating makes it more practical when frequently driving with multiple passengers and simultaneously transporting longer items or a lot of luggage behind the seats — for example, on a family trip with full occupancy or when transporting longer goods without folding down the rear seats.
The higher loading edge of the GLC, however, increases the effort required to load and unload heavy items; heavy or bulky cargo is easier to handle in the Touran due to the lower loading edge.
The higher trunk opening of the Touran facilitates loading bulky or taller items that might only fit at an angle or not at all in the GLC.
In short: The GLC is advantageous when significantly more cargo length is needed with full occupancy; the Touran scores points for ergonomic loading and unloading as well as storing tall items. The other size differences are minor and hardly affect everyday usability.