British Softskins

The Scammell Pioneer was a British 6x4 tractor unit used in the Second World War as an artillery tractor, recovery vehicle and tank transporter.
Artillery tractor[edit]

Pioneer artillery tractors in the London Victory Parade, June 1946
Introduced in 1935, the Pioneer R100 heavy artillery tractor was used throughout World War II to tow medium and heavy artillery pieces, it had accommodation for the gun's crew, tools, equipment, and ammunition.
Typical early war use included towing such medium pieces as the 60-pounder, 6-inch howitzer and even the 4.5-inch gun and 5.5-inch howitzer until the AEC Matador medium gun tractor was issued in sufficient numbers. Heavy artillery pieces towed included the 6-inch gun, 8-inch howitzer, 155 mm Long Tom and the 7.2-inch howitzer.
Many Pioneer gun tractors were lost in France in June 1940 with the evacuation of the BEF, either destroyed by the withdrawing troops or captured by the Germans.
Scammel produced 980 Pioneer R100 heavy artillery tractors by the end of the war, never available in sufficient numbers, the Pioneer was supplemented by the Albion CX22S heavy artillery tractor from late 1943.
https://en.wikipedia.org/wiki/Scammell_Pioneer

**My dad has many stories about driving these beasts around Germany, dragging 25pdr & 5.5" guns behind**