alloy rims, an AM/FM premium stereo with single-CD and cassette players and four premium speakers (80W), keyless entry, speed control, leather-wrapped steering wheel, and power mirrors. Leather seats are an option. XLT Premium - Added: Power driver's seat, rear audio controls with headphone jacks, automatic headlamps, fog lamps, overhead console, and tow hooks (4x4 models only). Adrenalin Edition - in 2005 Ford also added a few tester models, labeled the Adrenalin Edition. They were a limited-production model which added body colored side moldings, wheels, special interiors with a sport designed leather combinations and unique fabric floor mats, a factory installed plastic bed liner, a Pioneer 500 watt 6-disc CD changer stereo with upgraded speakers and a small subwoofer built in and a unique lighter backing of the instrument cluster (speedometer, tachometer, oil, temperature gauges). A bed extender and fog lights came standard. Special italicized badging on the lower right of the tailgate indicated the special options and appearance package model name of Adrenalin. Second generation (2007–2010) In 2006, Ford released the second-generation Ford Explorer Sport Trac. After skipping the 2006 model year, the new design was released as for the 2007 model year. Adopting many updates of the 2006 redesign of the Ford Explorer/Mercury Mountaineer, the Sport Trac received a redesigned frame and the introduction of several safety features, including stability control and active rollover protection (named AdvanceTrac and Roll Stability Control by Ford, respectively). Chassis The second-generation Ford Explorer Sport Trac shares the Ford U251 chassis with the fourth-generation Ford Explorer. As part of the redesign, the wheelbase was stretched to 130.5 inches (4.6 inches longer than the previous generation). In a break from its predecessor, the 2007 Sport Trac adopted the four-wheel independent suspension of the Ford Explorer; after the Honda Ridgeline and Hummer H1, the Sport Trac became the third pickup truck with such a suspension layout. As a standard engine, the second-generation Sport Trac retained the 4.0L V6 of its predecessor. For the first time the Sport Trac offered a V8 engine option, the 292 hp 4.6L 24-valve Modular V8 used in the F-150 pickups. The five-speed manual transmission was discontinued, with the 5R55W five-speed automatic becoming standard equipment with the 4.0L V6 and the 4.6 3V V8; in 2009 the 6R80 6 speed automatic replaced the 5 speed behind the V8. Body Again derived from a lengthened Ford Explorer, the second-generation Sport Trac was fitted