There's no getting around the fact that Americans like big SUVs. Do we typically take six or seven of our closest friends out on an off-road trail? Probably not, but in the spirit of Boy Scout preparedness, it's nice to know we can offer up our wheels should a demanding crowd of friends or relatives insist on exploring some local terrain.Admittedly, we spend more time allowing our SUVs to simply guide us down the freeway or through the mall parking lot than we do on off-road pursuits. That's where luxury appointed SUVs, such as Cadillac's Escalade and Lincoln's Navigator come into play.Both of the aforementioned large luxury SUVs are twin to a more practical, less pricey version, and following Nissan's recent foray into this territory with the 2004 Nissan Pathfinder Armada, it isn't surprising its luxury Infiniti division is also launching its own new SUV.