Chopper: Tell me this, right. Why would I shoot a bloke BANG? And then put him in the bloody car and wizz him off to the hospital at a hundred miles an hour? It defeats the purpose of having shot him in the first place.
During the scene where Chopper shoots Sammy the Turk in the eye with the shotgun in the car park behind Bojangles, the pregnant woman runs back to the car after witnessing the shooting, you can see the boom mike in the bottom right of the car's windscreen.