2022 Nissan Maxima Engine

I'm investigating a fire in this vehicle. The owner was driving and noticed a smell of rubber or electrical burning. He parked the car and noticed a small amount of smoke from the passenger side of the hood area. It was dark out and he opened the hood and went to get a flashlight. he went about 100 yards to his truck and looked back and the engine compartment was on fire. The owner states the car has around 8000 miles on it and he has recently had an odor of something burning but finding nothing when investigating that. He states the vehicle has run fine and the last commute was approximately 5 miles before the fire. The car was a total loss because of the fire it was completely consumed. I am the fire marshal for this jurisdiction.