It is a disaster, and not too uncommon. #
We had a local scare a few years ago when a garage caught fire after some welding had gone on and there were oxyacetylene cylinders there, the whole area was cordoned off whilst the cylinders were left to cool down, thank goodness they did not explode.
There was a guy in the next village who had several old cars in his lockup and had put a pot of paint on a stove to warm up, sadly he overdid it and the paint caught fire with such intensity he could not douse the flames and the lot went up.
I make sure that my car is insured even when it is in bits, not sure how it stands with the insurance company especially after a welding session, but, coming from the construction industry, my CO2 extinguishers are always at hand and I keep a fire watch for at least an our after the job has finished.
Bob