Lafayette (Ind.) Police officers fatally shot a suspect who attacked them with a large knife, after a four-mile pursuit on Oct. 19 in this dash-cam video.
The vehicle, the patrol car, the "shop," is obviously what distinguishes the vehicle ambush from other types of attacks. It also gives you instant mobility to get out of the kill zone. In keeping with the suggested tactics for lethal force encounters the vehicle helps you move and create distance.