This appear to be pretty much of an interim vehicle between the 4K3FA and 4K4FA variants as it has the 4K3FA headlight and the 4K4FA 250hp engine and larger glacis plate
hatch.
SPECIFIC RECOGNITION POINTS
Two light clusters with protective cages,
Larger glacis access hatch, with two handles, touching glacis edge.
Vertical side casemate commanders position with flush hatch.
