The kubelwagen generally could not tow anything. There was a special kit to allow it to tow a trailer, but it couldn't tow a 20mm AA (a rather substantial piece of equipment) or the german 37mm ATG. These were usually towed by light trucks that could also carry the crew and a combat load of ammunition. Oddly enough, the 251 halftrack was primarily used to tow the antitank gun, bacause its half track design would get it to places a truck could not.