One of the major differences between a sedan and a hatchback is the presence of a trunk or boot in sedan and the absence of a trunk in the hatchback. Although a hatchback has a little space behind the rear side of the passenger seat, it cannot be called a trunk per se. In contrast, the trunk in a sedan is separated from the passenger seat. Due to the absence of a trunk in a hatchback, it is shorter compared to a sedan.
Another difference is that the rear wheel of the hatchback is closer to the rear of the car than in the sedan. Although the hatchback does not have a big storage space, the little space behind the rear side of the passenger seat can still be used to keep a few materials. In contrast, the sedan has a trunk, which means it has more storage space compared to the hatchback.