Five vehicles were found burnt out across Dunedin yesterday.
A vehicle was set alight in Highcliff Rd, Sandymount, just before 2pm, following a night of destruction.
Senior Constable Lox Kellas, of Portobello, said the stolen late model Nissan was destroyed in the blaze. An accelerant was believed to have been used.
He praised the quick action of a local resident for dousing the blaze.
Firefighters were called to Bombay St, following reports of a vehicle on fire and threatening a nearby building in Dunedin's harbourside area, just after 2am.
Three vehicles, including a Mini and a ute, were damaged in the suspicious blaze.
Five minutes after that call, the Fire Service was called to another car ablaze on Mavis St, St Clair.
That vehicle was significantly damaged in another suspicious fire.
The owner of the Bombay St company said he lost three vehicles in the fire.
''I don't know who did it ... and I am lost for words, actually.''
The burnt-out vehicle found in St Clair was not from his yard, he said.
Detective John McDade, of Dunedin CIB, said inquiries into the suspicious fires were continuing and it was too early to say if the fires were linked.