[pmh]

> how I can bend the seats and carry a ton of stuff in the back

I don't think I've ever been in a sedan that doesn't have this feature, but you usually get a little more space out of a hatchback if the roof-line doesn't taper down.

[javagram]

A lot of newer hatchbacks seem to have a sharp taper to the roof and it really reduces the amount of space gained vs the sedan form factor.

The Honda Fit and a few others are the exception but I assume the reason is that the SUV form factor has gobbled up most of the market for “hatchback with a lot of space for cargo”. E.g. Toyota discontinued the Prius V and is instead offering an electric RAV4.