Bulgarian scouts in German light armored car Sd.Kfz. 222. Summer of 1944.
Marking looks very similar to the Audi-logo ;) 


Sd.Kfz. 222

In 1935 - 1938 The Czechoslovakia built thousands km of fortifications around the republic including about 10.000 bunkers. The German generals predicted a loss of 90% of their troops in the first wave of attack. Finally The Reich got those fortifications peacefully and the rest of Czechoslovakia became really vulnerable. And Germans had the best place where to train The Maginot´s Line destruction...