The 2006 Lincoln Mark LT is available as a 4-door, 5-seat regular side. Starting at $38,680, the 2006 Lincoln Mark LT 4x2 is powered by a 5.4L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 19-mpg on the highway. The top of the line 2006 Lincoln Mark LT 4x4, priced at $42,235, is powered by a 5.4L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 14-mpg in the city and 18-mpg on the highway.