Automobile tail door hinge and automobile

The utility model discloses an automobile tail door hinge and an automobile, the automobile tail door hinge is used for connecting an automobile tail door and an automobile body, and the automobile tail door hinge belongs to the technical field of automobile manufacturing. The automobile tail door hinge comprises a fixed part and a movable part, wherein the movable part is rotationally connected with the fixed part; the fixed part is used for being connected with the automobile body, the movable part comprises a first extending part and a second extending part, the first extending part and the second extending part are used for being connected with the automobile tail door, and an avoiding space used for avoiding a wire harness plug is formed between the first extending part and the second extending part. According to the scheme, the problem that a wiring harness plug is difficult to arrange due to the fact that an existing automobile tail door hinge occupies a large external space of a sealing face of an aut