Witnesses are being sought after four cars were found alight in Thanet during the same night.
Kent Police was made aware by Kent Fire and Rescue Service of a car alight in Gladstone Road, Broadstairs, at 1.15am on Wednesday 8 April 2020.
Officers also received further reports of three car fires between around 5.45am and 6.30am, in Chapel Place, Bellevue Road and Cavendish Street, in Ramsgate.
None of the cars were occupied at the time.
All of the fires are currently being treated as suspicious and officers would like to speak to anyone who witnessed suspicious activity in any of the streets mentioned, between 12.30am and 6.30am on 8 April.