A Very Brief History the Krankenpanzerwagen
The Krankenpanzerwagen is another lesser-known version of the Sd.Kfz. 251 and as such a lightly armored semi-tracked vehicle—in plain English, it’s an ambulance.
From the manufacturer’s webpage, this is how ICM describes this vehicle:
Sd.Kfz.251/8 Ausf.A WWII German Ambulance