The 2011 Lexus GX 460 is available as a 4-door, 7-seat sport utility. Starting at $53,045, the 2011 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 2011 Lexus GX 460 Premium, priced at $57,840, 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.