Abstract: With known vehicle superstructures of the above kind it has been found that in many cases relatively large amounts of deformation and damage to parts of the floor and walls occur even when the collision is very slight, that the thermal insulation is inadequate and that noises are produced in the sidewalls and floor due to vibrations during the journey.With the new vehicle superstructure the external forces acting on the sidewalls are no longer transmitted directly to the floor but reduced to a minimum level, which in most cases does not damage the floor, by means of a close-fit connection with built-in buffer zone. Also, the new design improves thermal insulation and markedly reduces the noises produced in the superstructure during a journey. Furthermore, the parts which have to be repaired can be readily removed and replaced.