[en] We apply the bremsstrahlung model for pion production to symmetric nuclear collisions at energies far below the single NN-threshold. All main features of recent neutral pion measurements can be explained by a single value of the deceleration parameter of the theory which is consistent with hydrodynamical calculations. Since the γ-ray bremsstrahlung also reflects the kinematics of its source, a simultaneous measurement of pion and γ-ray bremsstrahlung should be used to further test the collision dynamics. Results of our calculations for both kinds of radiation are presented. An extension of this approach to asymmetric systems is proposed. (orig.)