The 2021 Infiniti QX50 is available as a 4-door, 5-seat sport utility. Starting at $37,950, the 2021 Infiniti QX50 PURE FWD is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 23-mpg in the city and 29-mpg on the highway. The top of the line 2021 Infiniti QX50 AUTOGRAPH AWD, priced at $56,850, is powered by a 2.0L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 22-mpg in the city and 28-mpg on the highway.