While returning from a trailer fire I heard GFD tone out for a reported car fire in the arear of 20th and Chase, a thick black header was visible from a mile away. Crews from Engine 4 put a quick knock on the fire and nobody was hurt. While they were working, a rubbernecker slammed head-on with another vehicle just down the street. GPD was on scene asap, it appeared there were no injuries at the crash.