American-styled ambulance with single rear wheels in Brazil

Coachbuilt ambulances based on a cab-and-chassis truck are not nearly as common in Brazil as those based on vans, yet once in a while some models which may resemble those stereotypically American ambulances can be seen roaming around, yet mostly based on European-designed vehicles such as the Mercedes-Benz Sprinter. However, while some versions with dual rear wheels are available in Brazil, it's not uncommon to find them with single rear wheels also converted to ambulances. While stability would be better with dual rear wheels, especially due to the width excess, a reason for single rear wheels to be used on modular American-styled ambulances is the lower expense with tolls on certain roads.