“...one went ablaze just sitting, parked, engine turned off...”
Bad writing/editing.
Electric busses/autos don’t have ‘engines’ — they are propelled by motors.
Thanks for posting.
but is the thing ever really turned off ?
It's funny how we usually refer to an electric propulsion device as a "motor" and a gas or diesel propulsion device as an "engine", although sometime the things in cars are known as "motors".