The 2018 Infiniti QX30 is available as a 4-door, 5-seat sport utility. Starting at $29,950, the 2018 Infiniti QX30 Base FWD is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 33-mpg on the highway. The top of the line 2018 Infiniti QX30 ESSENTIAL AWD, priced at $41,400, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 21-mpg in the city and 30-mpg on the highway.