And metal looking like rivers of silver that came from cars that burned.
Not silver but a tin alloy used to mate body components, but yes I can picture it looking like silver. I've done body work on my cars and used a simple propane torch to melt the alloy and flow it into cans to collect it. Old cars used lead but now there are lead substitutes used. The stuff melts at a relatively low temperature and flows like water. Horrifying pictures showing just the steel body of cars remaining after the fire, all other components burned away or melted off.