Mechanical failure or malfunction as a factor 30%

Electrical failure or malfunction as a factor 12%

Collision, knock down, run over or overturn 3%

Intentional cause 4%

https://thedailyautomotive.com/what-causes-car-fires/

Probably the biggest difference between EV cars and ICE cars can be summarized as:

"Electric cars have a lower incidence of fires compared to gasoline vehicles. However, it’s estimated that about one-third of fires in electric vehicles occur while the car is parked and unplugged."

https://thedailyautomotive.com/do-electric-cars-catch-fire/

Electric Car Fire Statistics: What the Data Actually Shows

"The most dangerous moment for an EV is not on the highway. It is in a body shop or a scrapyard."

https://thedailyautomotive.com/how-many-electric-car-fires-p...