Fire chief Les Wasson said it appeared the fire had started from a battery which had been placed on the back seat, not the car's lithium batteries.
A volunteer firefighter cools an electric car which caught fire at Rangitane, near Kerikeri, on Tuesday. Photo / Peter de Graaf
The cause was not clear but it was possible the battery had short-circuited or overheated.
However, once the fire spread the car's lithium batteries had become very hot. A large volume of water was required to cool them to a safe temperature.