A 3D navigation system for motor vehicles includes a set-up combining a first motor vehicle and an environment scanner to generate a three-dimensional image of an environment around the first motor vehicle or at least a part of the environment around the first motor vehicle as well as at least a second motor vehicle and a communications connection between the first motor vehicle and the second motor vehicle for transmitting the three-dimensional image of the environment around the first motor vehicle or at last a part of the environment around the first motor vehicle to the second motor vehicle.