The 2020 Infiniti Q50 is available as a 4-door, 5-seat sedan. Starting at $36,400, the 2020 Infiniti Q50 3.0t PURE RWD is powered by a 3.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 20-mpg in the city and 29-mpg on the highway. The top of the line 2020 Infiniti Q50 EDITION 30 AWD, priced at $45,700, is powered by a 3.0L, 6-cylinder engine mated to an automatic transmission that returns an EPA estimated 19-mpg in the city and 27-mpg on the highway.