The Deutsches Rotes Kreuz (DRK, German Red Cross) in the Landkreis Bergstraße, Hesse, operates professional as well as volunteer services, using a variety of vehicles.
Rettungswagen (RTW) – Emergency Ambulance
Notarzteinsatzfahrzeug (NEF) – Emergency Doctor Car
Einsatzleitwagen (ELW) – Command Unit
Please note that these are scans from old 35mm slides in my archives, with resultant deterioration in colours and sharpness.