Porsche has written to owners of the latest 911 GT3 model to say it will replace the faulty engines in the vehicles.
The manufacturer had advised owners back in February not to drive the vehicles as it tried to identify a problem that caused two cars to be gutted by fire at the beginning of 2014.
After a thorough investigation it found the problem was being caused by faulty screws that joined the piston connecting rods to the crankshaft, resulting in damage to the crankcase.
A letter signed by Porsche GB managing director, Chris Craft, has been sent to all owners of the cars.
The luxury company said it was up to individual dealers' discretion whether they handed back deposits taken for the £100,000 car.
Copyright Press Association 2014