The Ford Explorer Sport Trac (also shortened to Ford Sport Trac) is a pickup truck that was manufactured and marketed by Ford Motor Company for the North American market. The first mid-sized pickup truck produced by Ford, the Sport Trac was marketed from the 2001 to the 2010 model years (skipping the 2006 model year). Sized between the Ranger (whose crew cab variants were sold outside of North America) and the F-150, the Sport Trac largely competed against crew-cab variants of the Chevrolet Colorado/GMC Canyon, Dodge Dakota, Nissan Frontier, and Toyota Tacoma. Produced over two generations, the Ford Explorer Sport Trac shared its chassis and much of its body from the Ford Explorer SUV (with the pickup truck bed designed specifically for the model line). All production was sourced from the Louisville Assembly Plant in Louisville, Kentucky (taking the place of the Ford Ranger). As Ford developed the fifth-generation Ford Explorer SUV for the 2011 model year, the Sport Trac was phased out of the model line, with production ending in October 2010. Closely matching the Sport Trac in size, the fourth-generation Ford Ranger serves the same market function in its SuperCrew four-door crew cab configuration. First generation (2001–2005) Introduced in February 2000 as an early 2001 model, the Ford Explorer Sport Trac was brought to market. While marketed as a variant of the Ford Explorer SUV model line, the Sport Trac was functionally a crew-cab mid-size pickup truck. Slotted in between the Ford Ranger SuperCab (crew-cab Ford Rangers were never marketed in North America) and the F-150 SuperCrew, the Sport Trac became the first mid-size pickup truck produced by Ford. In terms of layout, the Sport Trac was followed by the Chevrolet Avalanche and Honda Ridgeline, both crew cab pickup truck derived from SUVs. Chassis The Ford Explorer Sport Trac shares the Ford UN105 platform with the second-generation Ford Explorer. To accommodate for the addition of a pickup bed, the wheelbase of the Explorer Sport Trac was lengthened from 111.6 inches to 125.9 inches (matching the Ford Ranger SuperCab). As with the Ford Explorer and Ford Explorer Sport, rear-wheel drive was standard, with ControlTrac four-wheel drive as an optional powertrain configuration. A 210 hp SOHC 4.0L V6 was the sole engine offering. A five-speed manual transmission was standard, with a five-speed automatic transmission available as an option. During the 2001 model year, the 4.0L V6 underwent revisions, shifting from