The kleiner Panzerbefehlswagen was developed as an armored command vehcie. The Pz. Kpfw I had room for a radio received only, and had to be modified to accommodate a transmitter and its operator. Several of these vehicles were produced by modifying the Pz. Kpfw I Ausf. A. The production series was based on the lengthened chassis which had been developed for the kl Pz. Bef Wg. and later utilized for the Pz. Kpfw I Ausf. B. Sold Out!