Automobile body rear structure and automobile

The invention provides an automobile body rear structure and an automobile. The automobile body rear structure comprises automobile body rear longitudinal beams arranged on the left side and the right side respectively, each of the automobile body rear longitudinal beams on the two sides comprises an upper longitudinal beam and a lower longitudinal beam which are vertically arranged at an interval, and in the front-back direction of the whole automobile, the rear ends of the upper longitudinal beams are located behind the rear ends of the lower longitudinal beams; the rear anti-collision beam is connected with the rear ends of the upper longitudinal beams on the two sides, and the upper longitudinal beams and the lower longitudinal beams on the two sides are connected together through the connecting beams. According to the vehicle body rear portion structure, the overall rigidity of the vehicle body rear portion can be improved, a collision force transmission network can be formed on the vehicle body rear por