Arsonists set fire to a car in Bretton Way, in Bretton last week.
At 10.13pm on Thursday one crew from Dogsthorpe was called to the blaze. Wearing breathing apparatus they extinguished the fire using a hose reel and returned to their station by 11.25pm.
The cause of the fire was deliberate.
Anyone with information should contact police on 101 or Crimestoppers on 0800 555111.