Unlike the lighter 7.5cm infantry gun, the 15cm howitzer couldn't be mounted aboard a Sd Kfz 251 half-track, so instead the Germans experimented with using several different out-dated tank chassis. By 1943, the result was the Grille (Cricket) self-propelled 15cm gun. This gave the panzergrenadiers their own high-calibre, mobile guns to shatter enemy strongholds.
