Here's what happens when your Tesla Roadster (or any EV) reaches the end of battery life

Here on L.I. a Tesla had an accident and the car was incinerated. I guess the insurance rates for fire will go up on EV's, not only Tesla's. And extinguishment of those fires takes much more time, because they keep reigniting. So now a Fire Dept. Diesel pumper has to keep operating for several hours to extinguish the fire. So what did we save?
Nothing…. Except the extremely toxic chemicals they emit while they are burning…..check into that.