| Full Name | Sonderkraftfahrzeug 166 |
| Class | Heavy Vehicle |
| Movement | 5 |
| Armor Value | 4 |
| Vs Infantry (RNG / FPR) | 8/10 |
| Vs Vehicle (RNG / FPR) | 6/8 |
| Traits | |
| Period | Mid 1943-1945 |
| Theaters of Service |
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Based on the Panzer IV chassis, Alkett (Altmärkische Kettenwerk GmbH) designed this Sturmpanzer (“storm tank”) vehicle to provide direct infantry fire support, especially in urban areas. Its main gun was the 15 cm Sturmhaubitze (StuH) 43 L/12 in a casemate-style armored superstructure, firing the same rounds as the 15 cm sIG 33/1 (schweres Infanterie Geschütz 33) infantry gun. The final series of this type (Series 4) first appeared in June 1944; it was more mechanically reliable and carried a hull-mounted 7.92 mm MG 34 machine gun for defense. A crew of five operated the vehicle, at a maximum speed of 25 mph. The Allies referred to the vehicle as the 'Brummbär' ('Grouch'), while German soldiers nicknamed it the 'Stupa,' a contraction of the term Sturmpanzer. The excessive weight of early variants was somewhat ameliorated in later versions. Germany produced just over 300 examples, and they saw service beginning Summer 1943 in the battles of Kursk, Anzio, and Normandy, as well as the Warsaw Uprising. This unit represents all four series of the type.