The 2016 Lexus GX 460 is available as a 4-door, 7-seat sport utility. Starting at $50,780, the 2016 Lexus GX 460 Base is powered by a 4.6L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 20-mpg on the highway. The top of the line 2016 Lexus GX 460 Luxury, priced at $62,155, is powered by a 4.6L, 8-cylinder engine mated to an automatic transmission that returns an EPA estimated 15-mpg in the city and 20-mpg on the highway.