[Hanno Spoelstra]

Via Ed Webster:

While most people know the connection between the FV603 Saracen and the Malayan Emergency, what's less known is that there were several projects to create a stop-gap APC including this 3-ton troop transport (with the first mockup seen here) with an armored pillbox on the back in one mode and a fully enclosed armored body in another. Several armored lorries were put into service as well as a mixture of up-armored land rovers and other hodge-podge vehicles.