The twelfth generation of the Ford F-Series is a light-duty pickup truck that was produced by Ford from the 2009 to 2014 model years. Initially slotted between the Ford Ranger and Ford Super Duty in size, the F-150 became the smallest Ford truck in North America following the 2011 withdrawal of the Ranger (in North America). The final generation of the F-150 produced with a separate body design from the Super Duty trucks (F-250 to F-550), the twelfth generation again adopted an all-new chassis and body, also marking an extensive transition to the powertrain lineup. Alongside the all-new model design, the new generation started a model shift for the F-150. In all but the most fleet-oriented trim levels, Ford introduced higher-quality interior materials and features. In the United States, the Lincoln Mark LT was repackaged as the highest-content Ford F-150 Platinum trim (a Mark LT based on the twelfth generation was designed, exclusive to Mexico). For 2010, the SVT Raptor was introduced as the highest-performance F-Series truck; in contrast to the previous Ford SVT Lightning trucks, the Raptor was optimized for off-road performance. In North America, the twelfth-generation F-150 was assembled by Ford at its Dearborn Truck facility (Dearborn, Michigan) and its Kansas City Assembly facility (Claycomo, Missouri). In December 2014, production of the model line ended, with Ford introducing the thirteenth-generation F-series.