2007 Ford F-150 FX4 Off Road Package $8,990

If you want to know what the best-selling vehicle in the U.S. is, look no further than Ford's F-Series, which closes in on the million-unit mark every year. Although this line of full-size pickups includes the larger Super Duty trucks and even commercial-use chassis cabs, most consumers end up with the entry-level F-Series truck, the half-ton Ford F-150. Last redesigned for 2004, the F-150 has been tailored for today's pickup buyer who's as likely to use his truck for daily commutes and family errands as he is for serious towing and hauling tasks. A full-size pickup truck, the 2007 Ford F-150 is available in regular cab, extended cab (known as SuperCab) and crew cab (known as SuperCrew) body styles. Regular cabs come with a 6.5-foot- or 8-foot cargo bed, while SuperCabs can have either of those or a garage-friendly 5.5-footer. The F-150 SuperCrew takes either the 5.5-foot or 6.5-foot bed. Regular and SuperCabs come with reverse-opening rear doors for easier cab access, while SuperCrews have four full-size doors. In addition, there are five different trim levels to consider (XL, STX, XLT, FX4 and Lariat), along with three major packages (FX2, King Ranch and Harley-Davidson). Meant primarily for commercial use, the lightly equipped base XL comes with 17-inch steel wheels, vinyl seating, AM/FM radio and not much else. The STX is similarly equipped but adds body-colored bumpers, sportier wheels and a few additional features, such as a cloth bench seat, air-conditioning and an upgraded sound system with a CD player and an MP3 player input jack. The volume leader in the lineup is the midgrade XLT, as it offers the widest array of available options, as well as chrome exterior trim, an upgraded cloth interior, cruise control and power windows, mirrors and locks. The FX4 is geared toward off-road enthusiasts as it includes underbody skid plates, retuned springs and heavy-duty shocks, as well as 18-inch alloy wheels and a leather-wrapped steering wheel. High-line F-150 Lariat models cater to buyers looking for an upscale ambiance with interior features like brushed aluminum and wood highlights, leather upholstery, a power driver seat, automatic climate control and a trip computer.