Police said no one was injured in the blast, but the car was written off, and two other nearby cars were damaged.
"This was most likely some form of a detonation inside the car," Maya Forstenius of the local police told the TT news agency.
The area was cordoned off by a forensics team. Police have been in contact with the owner of the car, but reported that there was no perceived threat against them.
No one has been arrested in connection with the blast.