And the chances of your vehicle catching fire if you are not in an accident? Is it zero? If you think it's zero, then say so, right now.
Link
There are an average of 19 vehicle fires
per hour in the U.S. alone.
The NFPA ranks the ten leading causes of vehicle fires, from most to least common, as:
1 - Fuel system leaks
2 - Electrical faults
3 - Spilled fluids
4 - Overheating engine
5 - Overheating catalytic converter
6 - Hybrid and EV batteries
7 - Arson
8 - Car crashes
9 - Poor maintenance
10 - Design flaws
So your implication that a gasoline or diesel car can't catch fire unless it's involved in a collision are seen to be completely false, and made in gross ignorance.
Note that Li-ion hybrids and EVs are definitely on the list, although well below other causes that you have attempted to dismiss. No one has claimed that EVs never catch fire, and until the official investigation announced its finding of the vehicle type, that possibility was very much on the table. But after it was reported to be a diesel, you had to keep the CT going, so you started making baseless claims about the improbably of the source of the fire described by the investigation. But we see that the causes that you laughingly dismiss as ridiculously unlikely are actually the most common.