Fig. 4
From: Development of prehospital emergency care in Singapore
Evolution of our ambulances (from top left, clockwise; Austin Sheerline (1935), Austin K9 Welfarer (1948), Volswagen Transporter (1959), Volswagen Transporter (1960s–1970s), Volswagen LT31 (early 1990s), Mercedes Benz (1993), Mercedes Benz Sprinter (2009), and Mercedes Benz Sprinter (2015)