Tailgate opening system having two connecting rods

A rear vehicle assembly comprising:

• a body structure, wherein the body structure delimits an opening comprising at least a first lateral edge of the opening and a second lateral edge of the opening,
• a tailgate, wherein the tailgate is movable relative to the body structure between at least one open position, where the opening of the body structure is accessible, and a closed position, where the tailgate closes the opening of the body structure, and wherein the tailgate comprises at least one first tailgate lateral edge and a second tailgate lateral edge,
• an opening and closing device, wherein the opening and closing device comprises at least one first connecting rod and one second connecting rod fixing the tailgate to the body structure, wherein the first connecting rod and the second connecting rod are each hinged at a first end to the body structure and at a second end to the first tailgate lateral edge,
• wherein the first connecting rod comprises a first rectilinear section from the first end of the first connecting rod to a first intermediate point, a curved section from the first intermediate point to a second intermediate point, and a second rectilinear section from the second intermediate point to the second end of the first connecting rod, wherein the first rectilinear section is located on a concave side of the curved section while the second rectilinear section is located on a convex side of the curved section, and
• wherein the second end of each of the first connecting rod and the second connecting rod slides on a rail fixed on the tailgate, said rail being parallel to the first tailgate lateral edge, wherein the rail is parallel to a plane of the opening in the closed position of the tailgate.