According to Phoenix police, an ambulance got dispatched to a call. While the first responders were pulling out of the fire station, they heard a large thud. The crew saw a backpack and realized an individual was hit. 

The six-wheeled, all-wheel-drive utility vehicle is roughly the size of a Mini Cooper but can carry EMTs and a patient on a full-sized cot through tight spaces or even off-road.  

The vehicle, a MedStat ASAP MS250, will be used mostly for large events, Fire Chief Nate Trauernicht said.