Rear trunk space in P3

Hi - according to the specs, the Polestar 3's rear cargo space (with rear seats in position) is only about 17 cubic feet, including the hidden compartment area. This is from a quick google, and confirmed by converting liters in the official specs to ft3.

But this seems *tiny* to me, especially since it's supposed to be an SUV. I'm comparing it to an Ioniq 5, which is about 26 ft3. Heck, even my old Prius has nearly 22 ft3.

Can anyone confirm that the rear cargo space specs I see for the P3 are correct? Am I missing something here? Thanks.