Adler 2.5 Liter cabriolet by Karmann 1938
2014 Antwerp Concours - Wijnegem (B)

The Adler 2.5 Litre is popularly known as the "Autobahn Kurier" because, as a streamlined and powerful car, it was capable of maintaining high average speeds on the then new German highways. This explains the numberplate. According to its owner only 9 cabriolets are still around.