The 2007 Lincoln Navigator’s most direction competition is the Cadillac Escalade and Escalade ESV, also reworked for the 2007 model year. Starting at $55,400 (RWD) and $57,955 (4WD). The Escalade is substantially more expensive but comes with a larger and much more powerful engine. It also offers more bling, at least in the wheels: The Slade offers 22-inch wheels to the Gator’s 20s. Closer in price is Infiniti’s QX56 full-size luxury SUV, starting at $49,950 (RWD) and $53,050 (4WD). A 5.6-liter V8 engine makes 320 hp and 393 ft-lbs of torque in front of a five-speed automatic transmission. A power rear gate is also included, as is 10-way power driver’s seat adjustment and eight-way front passenger movement.