The 2015 Infiniti QX60 is available as a 4-door, 7-seat sport utility. Starting at $42,400, the 2015 Infiniti QX60 FWD is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 27-mpg on the highway. The top of the line 2015 Infiniti QX60 AWD, priced at $43,800, is powered by a 3.5L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 26-mpg on the highway.