Unusual is the open Gendarmerie car that Alfred Umgeher from Lower Austria has brought to the Veteran Meeting. His 1950 Type 18 is the sole roadworthy specimen of its kind. Back then, Austro Tatra in Vienna converted half-finished Volkswagens into cabriolets for the Austrian Gendarmerie in a mini-series of nine cars.
1950 Volkswagen Type 18: converted for the Austrian Gendarmerie by Austro Tatra (Vienna)
This particular official vehicle is utterly unique with its hand-made parts such as longer doors and a trunk lid fitted for a second alternator, wider door sills and other adjustments. After two years of reconstruction, the Gendarmerie Cabriolet has been back in use for almost 20 years – with Alfred Umgeher driving the 24.5 PS veteran in style on special occasions.
http://karmann1952.de/html/austro_tatra_typ_18_a_1.html
http://www.karmann1952.de/html/austro-tatra_.html
http://www.vw-kaeferclub.com/club/autos/restouma.html