Spontaneous ICE car fires are most likely to be caused by the 12V systems, so you’re not going to smell gasoline.
Here’s an example:
Tension on the transmission wiring harness could lead to wire insulation pulling back from the electrical connector. As a result, water from external sources could penetrate the connector. The presence of water may create a short circuit over time. As a result, the short circuit could lead to thermal overload if the vehicle's ignition is off for longer periods of time.
Subsequently, the risk of fire cannot be ruled out.
Comments
Spontaneous ICE car fires are most likely to be caused by the 12V systems, so you’re not going to smell gasoline.
Here’s an example:
https://static.nhtsa.gov/odi/rcl/2022/RCLRPT-22V533-6872.PDF