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 2005LincolnAviatorAWD , 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.