Porsche has issued a global recall of the 2014 911 GT3, after an engine fault caused two of the race-ready supercars to catch fire. Engineers at Porsche's Stuttgart headquarters are examining the charred remains of the affected vehicles in an attempt to determine precisely what caused the engines to ignite. The two reported fires - one in Italy and one in Switzerland - are the only such incidents that have been officially confirmed. The recall affects 785 vehicles worldwide, including 463 that are yet to be delivered to customers. Porsche Australia says that it is in the process of contacting the five customers that have been affected locally (four more are awaiting delivery), and that each of the vehicles will be collected for a full engine inspection.