FILE - In this Friday, June 20, 2014 photo former three-time F1 World champion Niki Lauda from Austria attends the second training session at the race track in Spielberg, Austria. Three-time Formula One world champion Niki Lauda has undergone a lung transplant. The Vienna General Hospital says the operation was performed Thursday because of a "serious lung illness." It didn't give more specific details in a brief statement and said the 69-year-old Austrian's family would make no public comment (AP Photo/Kerstin Joensson, file)