Hi Andrew:
Excellent comparison graphics!
And the reason the v exists
2012 Toyota Prius v

Its cargo carrying capacity matches most compact crossovers but no other compact crossover has a 42 mpgUS combined fuel economy rating

Dog and cargo friendly as my Golden pup -- she's a bit too big to be called a pup nowadays -- explores the rear interior of the all-new v.
Sean, I placed a 36” Camping and accessory bag in the second photo to simulate a hockey bag. Hockey bags are IIRC another foot longer right? There was about 2” left with the seats moved to the back of their tracks and over a foot of space when the rear seat is moved forward to its stops.
Wayne