The 2005 Lincoln Aviator is available as a 4-door, 5-seat sport utility. Starting at $40,635, the 2005 Lincoln Aviator 4x2 is powered by a 4.6L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 18-mpg on the highway. The top of the line 2005 Lincoln Aviator AWD, priced at $43,585, is powered by a 4.6L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 13-mpg in the city and 18-mpg on the highway.