Many SUVs have grown into giant luxury barges incapable of tackling little more than snow-covered pavement, which is why off-road devotees and weekend warriors love the 2009 Nissan Xterra. Nissan's most affordable SUV is renowned for its rugged body-on-frame construction, powerful standard V6 engine and insatiable appetite for all things dirty and boulder-strewn. Although it faces tough competition from Jeep's Wrangler four-door, the Xterra remains an attractive prospect. Innovative features, such as a built-in first aid kit, adjustable cargo-hold track system and a roof-mounted drying rack, are geared toward those with active lifestyles, while the Xterra's civilized interior and comfortable ride make it perfectly suitable as a daily driver.