A car was destroyed by a fire in Chalfont St Peter and Bucks Fire and Rescue believe the fire was started deliberately.
The incident took place in Layters Close around 10.40pm on Monday March 15.
Thames Valley Police received reports of a car being set alight and attended the scene.
An investigation was carried out and it has since been filed pending further information coming to light.
One appliance and crew from Gerrards Cross attended.
Firefighters used two hose reels, one set of breathing apparatus, a dry powder extinguisher and a thermal imaging camera.
Bucks Fire and Rescue confirmed they believe the fire is believed to have been started deliberately.
Anyone with information is asked to call 101 or make a report online. Reference number 43210109101.