What makes this full-size SUV different from its soon to be older brother is the extensive use of aluminum, just like Ford pioneered in the F-150
. Despite a new EcoBoost engine option that resides in the current Expedition lineup, the turbocharged unit wasn’t enough to cut fuel economy down to what the EPA will soon expect, so a diet was in order. The lighter and stronger high-strength steel chassis will be straddled by an aluminum body, helping the Expedition go easier on its 3.5-liter twin-turbo EcoBoost engine in order to get better fuel economy. That engine made a respectable 365 horsepower and 420 lb-ft of torque, so the lighter SUV may be able to get away with a smaller engine.