that would be the obvious or something electrical.
as a old time car guy .. here is my 2 cents or less
one thing I always do in no matter
whatever daily junker pos I drive.is …..
I keep a extra dedicated wrench the size of the battery cable
in my console or ashtray ALWAYS.
back in the day
I owned a 59 Corvette and I had a fire erupt
in the dash as I was driving it
wires were melting into the carpet
I pulled over, flipped open the hood like a madman and
I disconnected the battery and threw it on the ground
and it stopped feeding the fire and saved the car.
I did have to replace every wire in the car
the dash harness was one glob and a bunch of bare wire
if I didn't have that wrench in the ashtray
it would of ended up just like what happened above
I never leave home without it.. !