Keep in mind the new prius is much smaller than the 22, which itself is smaller than previous year models. They're being delivered now. Sit in one before you decide. We've long driven priuses but decided against this year's models.
Headroom (Front/Rear): 39.4 in.
Shoulder Room (Front/Rear): 55.5 / 54.7 in.
Hip Room(Front/Rear): 53.5 / 52.8 in.
Legroom (Front/Rear): 41.1 / 38.8 in.
Cargo Volume (Seats Upright): 24.2 cubic feet
Cargo Volume (Seats Folded): 62 cubic feet
'23 Prius Prime: Front head room: 38.0 in.
Front shoulder room: 55.3 in.
Front hip room: 54.7 in.
Front leg room: 42.4 in.
Cargo Volume (Seats Upright): 20.3 cubic feet
Cargo Volume (Seats Folded): 26.7 cubic feet
I'm having a hard time believing the Kia Soul has so much more cargo space with the seats folded.https://www.kiacerritos.com/2022-kia-soul-interior/
https://www.edmunds.com/toyota/prius-prime/2023/features-spe...
EDIT: removed the extra "comparison"