sentences:  Later a version with doors (15A M47) was also produced.During the late 1940s, four different types of "Polizei" Cabriolet were made, based on either Type 1 sedans or VW running gear.by Karmann, Hebmüller (which had a fixed cabriolet top and mostly used four cloth doors), Papler (based in Köln, which differed in having four steel doors; only two are known to survive), and Austro-Tatra (which also used steel doors, and like the Hebmüller had a fixed cabriolet top).