I find armored cars to be fascinating. The Soviets fielded a wide range of designs during the Great Patriotic War, none of which could be considered to be particularly successful. They did have their places as screening or reconnaissance vehicles, but generally they were too lightly armed and armored for the resources they used. The BA-9 is an example of this, being armed with a 7.62 mm and 12.7 mm machine gun, it carried a crew of four and had a maximum speed of 35 mph (55 km/h). UM has produced a nice little kit of this uncommon vehicle. It has their vinyl tires again which I find problematic and is a little over-engineered, but it can be built up into an interesting model.