Gen Friedrich of the VPK (Motor Transport Inspection service) VPK stands for
Verkehrstechnische Prufungs-Kommision. Gen Friedrich sponsored an industrial conference on
October 30 1916 with reps from from all the main German automotive and industrial firms to get interest in designing a such weapon but none showed any interest as Germany was starting the Hindenburg programme which increased military production for the Hindenburg.
Hindenburg coming out of its hanger