The blast took place on Stora Nygatan in the centre of the city. There were no reports of any injuries, but the blast did shatter several windows at the nearby Museum of Modern Art. Another car was also damaged.
“There are car parts lying up to ten metres from the car. It must have been a really strong explosion,” one eyewitness told news agency TT.
Police said there were no indications the blast was linked to the shooting dead of a man believed to be a member of the Wolfpack Brotherhood criminal gang at a shopping centre over the weekend.
“Not as far as we can see at the moment,” said Gunilla Hellichii, a Malmö police sergeant.
The woman who owned the car is not believed to have been under any threat prior to the explosion, local newspaper Kvällsposten reports.