Combination car (ambulance)

A combination car is a vehicle that can serve either as a hearse or as an ambulance, and has the capability of being swapped between those roles without much difficulty. In use in the United States until the late 1970s, this hybrid usage of the cars reflected an era when funeral homes offered emergency ambulance service in addition to their primary trade, especially in smaller towns and rural areas.

Source: Wikipedia — Combination car (ambulance) (CC BY-SA 4.0)