The capability of four-wheel drive made this trim truly the Ultimate Lincoln Navigator for 2006. This was especially so since the ControlTrac 4WD system has the traditional two-speed transfer case with settings for 2 High, 4 High, and 4 Low, but the difference is the Automatic setting means it can be left on when driving on dry pavement for attention to safety that the driver doesn't have to sweat over.

But the Ultimate really earned its name because of its eye-popping list of features - this is the only passenger vehicle with power-deployable running boards. And that word power gets a workout in this list, as there are also power-folding side mirrors, a power liftgate, and a power-folding third-row bench seat.

Additional equipment and upgrades could have been added upon ordering. An Elite Package put together for the Ultimate added a navigation system with upgraded audio components, gas-discharged headlamps, a rear-seat DVD entertainment system, chrome wheels, and a heavy-duty towing package.