Abstract: A vehicle body has a floor-side reinforcement, in particular crash reinforcement structure, laterally on both sides of the central tunnel, for a transmission support. The transmission support is arranged between reinforcement elements of the vehicle floor which are held so as to be situated opposite on the vehicle floor interior and on the vehicle floor exterior respectively. Outer lateral longitudinal edges of the reinforcement elements are connected to floor longitudinal beams and inner lateral longitudinal edges are connected to transmission longitudinal beams which are held so as to be supported at the central tunnel.

Abstract: A stiffening device for a motor vehicle body with a U-shaped central tunnel. The stiffening device includes a tunnel bridge with at least two transverse beams and, connected thereto, longitudinal beams. The transverse beams extend underneath the central tunnel and can be fastened with a free end in each case to the vehicle body by connecting devices.

Abstract: A vehicle body of a motor vehicle has a central tunnel which is connected on its open lower side to at least one transverse bridge support. The bridge support is mounted to the lower side of bent limb portions of the central tunnel and is connected via at least two bolted connections, which are offset in the longitudinal and transverse directions of the vehicle, to a supporting bracket arranged on the upper side of the bent limb portions. The bridge support together with the supporting bracket faces an end side of the seat crossmember in an exposed manner. Furthermore, two bridge supports which are connected to each other via longitudinal struts can be provided on the central tunnel.

Abstract: A vehicle body has a floor-side reinforcement, in particular crash reinforcement structure, laterally on both sides of the central tunnel, for a transmission support. The transmission support is arranged between reinforcement elements of the vehicle floor which are held so as to be situated opposite on the vehicle floor interior and on the vehicle floor exterior respectively. Outer lateral longitudinal edges of the reinforcement elements are connected to floor longitudinal beams and inner lateral longitudinal edges are connected to transmission longitudinal beams which are held so as to be supported at the central tunnel.

Abstract: A stiffening device for a motor vehicle body with a U-shaped central tunnel. The stiffening device includes a tunnel bridge with at least two transverse beams and, connected thereto, longitudinal beams. The transverse beams extend underneath the central tunnel and can be fastened with a free end in each case to the vehicle body by connecting devices.

Abstract: A vehicle body of a motor vehicle has a central tunnel which is connected on its open lower side to at least one transverse bridge support. The bridge support is mounted to the lower side of bent limb portions of the central tunnel and is connected via at least two bolted connections, which are offset in the longitudinal and transverse directions of the vehicle, to a supporting bracket arranged on the upper side of the bent limb portions. The bridge support together with the supporting bracket faces an end side of the seat crossmember in an exposed manner. Furthermore, two bridge supports which are connected to each other via longitudinal struts can be provided on the central tunnel.