1. A test stand for simulating driving behavior of vehicles, with a braking apparatus to which an engine of the vehicle is coupled, with measuring devices for measurable variables and engine torque M, and with an electronic test stand control device for controlling the braking apparatus in which a first simulation model is stored which calculates simulation values of variables which are representative of the driving state of vehicles, such that a reaction of the vehicle to the behavior of the engine and the values of the variables determined prior thereto are calculated, with an evaluation unit being provided which on the basis of the values measured on the test stand and the values for non-measurable variables as calculated therefrom with the simulation model calculates at least one evaluation variable w, wherein a superimposition unit is provided in which a further simulation model is stored which calculates higher-frequency changes in variables n, M which are measurable and superimposes the changes on the actual measured values in calculating the evaluation variable w.