The Lincoln Navigator is a full-size luxury SUV built by the Ford Motor Company for its luxury division, Lincoln. The Navigator was Lincoln's first SUV as well as its first four-wheel drive capable vehicle. The Navigator shares its platform, mechanical features, and other equipment with the Ford Expedition, which was introduced a year earlier. Unique and upscale styling, interior materials, and other features differ the Navigator from the Expedition. Given its platform mate, the Navigator is the largest vehicle Lincoln currently offers, having the greatest cargo capacity. For 2007, a longer, extended wheelbase version of the Navigator called the Navigator L was introduced, increasing cargo capacity further. Since its introduction, Lincoln has offered only one engine choice at a time in the Navigator in any model year; all are variations of Ford's 5.4 L Modular V8. The Navigator was positioned to be a new luxury choice in the then-growing full-size SUV market segment, with more features and an upscale design. Though the Navigator's exterior bears resemblance to its Expedition cousin at a glance, it differs in a number of ways, including different front and rear fascias with unique headlights and taillights, a chrome style grille, a unique hood, different style wheels, unique wheel arches, a different roof rack, and different door handles. Inside, the Navigator's interior featured upscale additions including standard leather seating surfaces, fine wood inserts, extensive carpeting, and greater sound deadening. Navigators were equipped with dual front-side airbags, four wheel anti-lock disc brakes, a ten-speaker premium audio system with stereo, automatic climate control, a wood- and leather-trimmed steering wheel with redundant audio and climate controls, "captain's chair" front bucket seating, power driver and passenger seats, an overhead console (with map lighting and electronic information displays), power windows, power door locks, power heated mirrors, remote keyless entry, illuminated running boards, automatic headlights, foglights, and 18-inch alloy wheels. Upscale options included an electrochromic rearview mirror (which filters out headlight glare from other vehicles behind the Navigator), a seven speaker, 290-Watt audio system with a six-disc front console-mounted CD-changer, rear seat audio controls, DVD entertainment system, 2- 15" flat screen monitors, mood lighting, party lighting, beautiful wood bar, privacy divider, rear vip seating area, upgraded rear two-tone upholstery.