- AMMO “Oilbrusher” oil paints (“Dust” A.MIG-3516, “Dusty Earth” A.MIG-3523, “Medium Soil” A.MIG-3522) were dotted on the much of the horizontal surface, underside, running gear of the vehicle and wheels, which had previously been dampened with enamel thinner. A round brush was used to dilute and blend the oils.
- The same oils were dotted on the sloping and vertical surfaces. A flat brush was used to draw them down the sides to create dust and rain streaks.
The vertical and sloping sides of the upper hull and turret were dampened with enamel thinner and then dots of AMMO Oilbrusher “Starship Filth”, “Starship Bay Sludge” and “Rust” were added. Then, using a flat brush, the oil paint was drawn down the side to simulate streaks. After drying, this process was repeated multiple times.
It went together pretty well, apart from the exhaust bracket – just a strip of brass which you are expected to bend into a complex shape with no pre-scoring of the metal whatsoever. Not helpful at all! I hope that the front wheels attach alright to the axle and control rods, once painted.
“The BA-20 armored car was developed in 1934 for use by HQ staffs, reconnaissance and communications units. It was derived from the civilian GAZ-M1 car using its chassis” 
HobbyBoss 1/35 kit . The box art portrays a captured one but I am not going to be doing that. It really does look like an armoured version of the civilian vehicle.
- The entire vehicle was washed with a dilute mixture of Winsor & Newton “Raw Umber” and “Lamp Black” oil paints (ratio about 5:1) in enamel thinner – the excess being cleaned up with a dry brush or cotton bud.
- Certain hull panel lines were treated with AMMO “Panel Line Wash – Dark Green Grey” (A.MIG-1608).
- AMMO Oilbrusher “Olive Green” (A.MIG-3505) was used on various high points of the vehicle.
- AMMO Oilbrusher “Starship Bay Sludge” (A.MIG-3532) or “Starship Filth” (A.MIG-3513) were worked into various recesses, the excess being cleaned away.
- The headlight was drybrushed with Abteilung “Metal Power” silver (ABT205).