MELBOURNE, Australia - The Formula 1 world is mourning yet another death - that of Sean Edwards, 26, which has come soon after that of test driver Maria de Villota.The young driver appears in the new F1 feature film 'Rush', playing his father Guy who was one of the brave drivers who pulled Niki Lauda from his burning Ferrari in 1976. Villota badly hurt in a crash in Jully 2012, apparently died of a heart attack while staying at a hotel in Spain. She was 33.DIED INSTANTLYFellow Australian and F1 driver Mark Webber rued on Twitter: "Always enjoyed watching him drive at the F1 weekends". Edwards was leading the 2013 F1 support series Porsche Supercup but was killed in a crash at a circuit in Queensland while on driver coaching duties. He was in the passenger seat of a Porsche GT3 when it hit a track wall at 210km/h and burned. He died instantly."Sad period in the racing world due to the loss of Maria de Villota and Sean Edwards, who I went to school with," said Mercedes driver Nico Rosberg on Twitter.More images and video.