One fire appliance was scrambled from Wellington to Cherrybrook Drive, in Broseley, at 6.14pm on Tuesday to reports of a car fire.
When they arrived they found one hatchback car "60 per cent destroyed" by fire.
Firefighters used breathing apparatus, a hosereel jet and small gear to deal with the blaze.
A spokesman for Shropshire Fire & Rescue Service said: "Hatchback car 60 per cent destroyed by fire, believed to be caused by a mechanical defect."
Firefighters had dealt with the incident within 21 minutes.
