This is a 28mm model of the interwar czech OA vz.30 armoured car. here is a brief wiki link
It is interesting for so many reason, not least being that only 50 or so were built, yet it serevd in five different armies - the Czech Army pre-Munich, the slovak, the Hungarian, the Romanian and the German Army.
I built this for a friend building a Romanian Army, hence it is not painted.
I started with Jarlang's 1/72 file (who does wonderful work!), upsized it to 28mm, created separate axles, and adjusted the axle spacing, added hood and light detail, created the anti-bullet splash shield on the upper hull, and the separate MGs. you may have to use a pin drill to widen the hull MG recess