For 66 years, Ford pickups have been, well "built Ford tough." Their 5,000 pounds have cleared tornado debris, pulled Rose Bowl floats, and plowed snow. And they've shouldered those loads with parts forged from steel. Until now. Ford today unveiled a new F-150 (the 2015 model year) with a body built almost entirely out of aluminum, which shaves as much as 700 pounds off the truck, a revolutionary change for a vehicle known for its heft and an industry still heavily reliant on steel. Standout facts and details about the change, which comes in response to small-business owners' desire for a more fuel-efficient truck—and stricter government requirements on fuel economy: