The Technisches Hilfswerk (THW, German federal civil defence technical service) in Stuttgart, Baden-Württemberg, operated a variety of vehicles over time.
Fast Rescue Vehicles
Personenwagen – Utility Car
These cars were usually allocated to the local CEO (Geschäftsführer) and used as control units and runabouts.
Please note that these are scans from old 35mm slides from my archives, with resultant deterioration in colours and sharpness.