A sedan is structurally easier to resolve than other bodies; since the separation between volumes makes the body more rigid. this was especially true when the sedans did not have folding rear seats; since there was a rigid transverse screen behind them. however; since the appearance of the ford orion in 1983; the folding rear seats have been diffused. as the rear overhang is greater than in a hatchback; the trunk is usually much larger in a sedan; resembling that of a liftback or family member. comparison between the volume of the boot of cars with carrocerka sedan with respect to the version of five doors (hatchback or liftback) from which they derive.