I just read in Trailer Life that the 2014 F150's will be produced with aluminum body panels. The hood is alumimum already, but the 2014 will start the transition to aluminum doors and fenders by 2019. Not sure why it will take 5 years to transition, but it's said to reduce the truck weight by about 700 lbs to help improve fuel economy. This will surely help since Ford's trucks have usually out weighed competitors by a good amount. I'm thinking the 2014 will also be a revamp on the body style as well. Looks like the 2014 will be my next F150