@bot They're driven or towed to a wrecker yard, where they're sold for a very low scrap value (despite the value of that much metal).

The wrecker yard then determines if it's most profitable to resell the car overseas where labor is cheap (which allows the car to be repaired and resold), or if to remove the wheels and put it into the compactor, for stacking and then shipping off for further processing.

The crushed cars are then shipped off to ???, where the metal is separated from the plastic and glass, with the metal recycled and everything else either landfilled or dumped into a stream.