Another car was damaged by fire on Wednesday afternoon, this time in Mellieha.
The police are investigating the fire, which is the latest in a string of similar incidents since December 29.
At least 10 cars, including the one in Mellieha, have been damaged by fire in various localities. At the beginning of the month a man was charged in court with setting fire to seven cars in Birkirkara. Earlier this week the police also investigated a fire in two cars parked in a garage in Gzira.
The police said they had been informed that an Austin was on fire in Louis Wettinger Street, Mellieha at about 3 p.m. on Wednesday.
The Civil Protection Department extinguished the fire.