The SdKfz 6 (Sonderkraftfahrzeug 6) was a half-track military vehicle used by the German Wehrmacht in WW2 as a prime mover for the 10.5 cm leFH 18 howitzer. Development of a medium artillery tractor began in 1934 at Büssing-NAG, in Berlin. A part of the m. Zgkw. 5t was equipped with the artillery superstructure. Contrary to the engineer superstructure, the artillery superstructure had only two rows of seats but it had a stowage compartment at the rear. Production was carried out by both Büssing-NAG and Daimler-Benz.