Police and fire crews in Katherine were called to a vehicle fully engulfed in flames in a quiet street in Katherine East on Thursday afternoon, NT Police said.
Officials are calling for anyone with information on the suspicious fire to come forward with information.
Emergency services were called to the vehicle fire shortly before 1pm on Wednesday on Fordham Court, which was also causing heat damage to a nearby vehicle.
Fire crews extinguished the flames but the car was destroyed, a statement said.
“Police believe this is an isolated incident and we are calling for any witnesses to come forward,” said Detective Senior Sergeant Paul Lawson.
“Anyone with information, CCTV or mobile phone footage of any unusual activity in the area between 12pm and 1pm is asked to call police on 131 444. You can also anonymously contact Crime Stoppers on 1800 333 000. Please quote reference 9958705.”