4 car pile up. it's foggy and wet and no one can see jack. 40kph cars slam into each other. gas leaks out, maybe eventually starts a fire. meanwhile the hyd

4 car pile up. it's foggy and wet and no one can see jack. 40kph cars slam into each other. gas leaks out, maybe eventually starts a fire. meanwhile the hydrogen batteries, some already fragile, just explode. on the plus side the blasts and fire make the pile up a lot more visible.