@Andre: accidentally I saw a short article about this ARO 240 http://www.localbook.de/temp/pics/018000000180030626833_800x600.jpg used by the fire fighters. Now it's standing in a museum in Merseburg in East Germany, but originally it was sold as a new car in the far West of West Germany, in Daun in the Eifel (where the Nürburgring is located, not far away from Luxemburg)
The fire truck-conversion was made locally shortly after the import.