One fire engine from Taunton was mobilised to a car on fire in Bramley Road at 00:12 this morning (Tuesday).
The fire service said the fire is believed to have been started maliciously and was well alight on attendance.
The car was extinguished using two breathing apparatus sets and a hose but it was severely damaged by fire.
A thermal imaging camera was also used to check the car.
The incident was left in the hands of the police.