The British Army wanted a 4x4 command vehicle that could be used as a mobile headquarters.
Guy won a development contract in 1939.
The Guy Lizard 4x4 chassis was used.
A diesel Gardner engine was used.
The Guy Lizard prototype was an open box with the command area able to access the driver's position.
30 were ordered to be produced.
Most of the Guy Lizard command vehicles remained in Britain, though some were sent to the 8th Army in North Africa as one was captured by the Italians.