What type of emergency vehicle is this? (car,truck,van,something else)?

[little_blue_beaver]

ems vehicles are they a called a ems truck? ems car? or ems van? or none of them

http://www.capecodfd.com/Pics%20Appar%202/Pic%20WA%20EMS%20744%20Mar06%208081.jpg

http://www.indianafiretrucks.com/pictures/marion/wayne/staff/car-841.jpg