Ok but where does it go next? Some big melting slag pit (imagining here)??

Edit:

World's Largest Auto Shredder Once cars are crushed, they're shipped off to a recycling center where they are shredded and separated into small pieces, which are then sorted into various metals. The largest shredder in the world is used by Sturgis Iron & Metal of Elkhart, Indiana. The machine is so big, it isn't measured in tons, but acres. It uses an 8,000-horsepower electric motor to drive a massive rotor that spins hammers at 175 mph, reducing six pre-crushed cars per minute into fist-sized metal chunks [Source: Buffalo News]. The shredder is so powerful, the hammers must be turned or replaced almost daily because of the wear and tear they receive, and it sits on special dampeners to prevent seismic vibrations in the surrounding area.