"...led Britain to establish Dunsterforce... one element of this force, known as Duncars, consisted of the survivors of Locker-Lampson's division, now in Army uniform, under the command of colonel Crawford, and the Austin armoured cars now languishing in Britain. A last-minute change of policy in the United Kingdom meant that only twenty-four of the forty cars actually reached the Middle East, so the remaining personnel formed motor machine gun units, transported in soft-skinned vehicles.
...the remaining Austins in Mesopotamia later formed No. 7 LAMB, although at least two of them were incorporated into the Railway Armoured Motor Battery RAMB... the cars were coupled back to back and fitted with flanged railway wheels... carried spare lengths of rail to patch up the track in the event of sabotage, and for a while [carried] the names Valiant and Warsprite... another car belonging to this strange, unsung unit was Malaya, a converted Indian pattern Fiat."


(source: War Cars by David Fletcher)
So not that much about the colours there, only the mention about the Army uniforms.
Just wondering if anybody has done a conversion of the Austins for railroad use? Would make a nice scenario, e.g.. the two linked Austins, crews fixing a broken track when enemy launches their ambush...