full-size luxury SUV produced by Ford Motor Company for its luxury division Lincoln. Introduced in 1998, the same year as the larger, redesigned 1998 Lexus LX). The Lincoln Navigator is the largest luxury-type SUV made by the Ford Motor Company and is Lincoln's first four-wheel drive vehicle. In April 2008 Consumer Reports identified the Lincoln Navigator Ultimate among the SUVs that got the lowest gas mileage, 13 miles per US gallon