What's New for 2007The 5.6-liter V8 engine has been re-rated for 317 horsepower and 385 pound-feet of torque in the 2007 Nissan Titan, but actual performance is unchanged. A couple of new options packages have also been added.===== Introduction =====The U.S. -- home of shock-and-awe military maneuvers, cowboy boots and that ridiculously outsized Mall of America -- knows a thing or two about swagger. It's little wonder, then, that domestic manufacturers invented and cornered the full-size truck market. When Nissan announced plans a few years ago to throw its hat into this ring with a full-size pickup truck aptly named the Titan, the prognosis was uncertain. Would a Japanese manufacturer really be able to get to the heart of this quintessentially American market segment? The answer turned out to be a resounding yes. On sale since 2004, Nissan's Titan has proven itself a leader in the full-size pickup truck category.