Taradale resident Darryl Whiting is blaming a phone for destroying his car.
He said the iPhone 5 belonged to an EIT homestay student who had difficulty charging it on Friday afternoon.
"It wouldn't turn on - there was obviously some kind of fault with it," he said.
"We were going to take it to a repair place to see why the thing wasn't working. We put it on the seat, went inside for a cup of coffee and next thing the car is destroyed."
He said there was no need to call the Napier fire brigade because the fire went out on its own.